Identifier
Identifier
Values
[1,2] => 0
[2,1] => 2
[1,2,3] => 0
[1,3,2] => 2
[2,1,3] => 2
[2,3,1] => 3
[3,1,2] => 3
[3,2,1] => 2
[1,2,3,4] => 0
[1,2,4,3] => 2
[1,3,2,4] => 2
[1,3,4,2] => 3
[1,4,2,3] => 3
[1,4,3,2] => 2
[2,1,3,4] => 2
[2,1,4,3] => 4
[2,3,1,4] => 3
[2,3,4,1] => 4
[2,4,1,3] => 4
[2,4,3,1] => 3
[3,1,2,4] => 3
[3,1,4,2] => 4
[3,2,1,4] => 2
[3,2,4,1] => 3
[3,4,1,2] => 4
[3,4,2,1] => 3
[4,1,2,3] => 4
[4,1,3,2] => 3
[4,2,1,3] => 3
[4,2,3,1] => 2
[4,3,1,2] => 3
[4,3,2,1] => 2
[1,2,3,4,5] => 0
[1,2,3,5,4] => 2
[1,2,4,3,5] => 2
[1,2,4,5,3] => 3
[1,2,5,3,4] => 3
[1,2,5,4,3] => 2
[1,3,2,4,5] => 2
[1,3,2,5,4] => 4
[1,3,4,2,5] => 3
[1,3,4,5,2] => 4
[1,3,5,2,4] => 4
[1,3,5,4,2] => 3
[1,4,2,3,5] => 3
[1,4,2,5,3] => 4
[1,4,3,2,5] => 2
[1,4,3,5,2] => 3
[1,4,5,2,3] => 4
[1,4,5,3,2] => 3
[1,5,2,3,4] => 4
[1,5,2,4,3] => 3
[1,5,3,2,4] => 3
[1,5,3,4,2] => 2
[1,5,4,2,3] => 3
[1,5,4,3,2] => 2
[2,1,3,4,5] => 2
[2,1,3,5,4] => 4
[2,1,4,3,5] => 4
[2,1,4,5,3] => 5
[2,1,5,3,4] => 5
[2,1,5,4,3] => 4
[2,3,1,4,5] => 3
[2,3,1,5,4] => 5
[2,3,4,1,5] => 4
[2,3,4,5,1] => 5
[2,3,5,1,4] => 5
[2,3,5,4,1] => 4
[2,4,1,3,5] => 4
[2,4,1,5,3] => 5
[2,4,3,1,5] => 3
[2,4,3,5,1] => 4
[2,4,5,1,3] => 5
[2,4,5,3,1] => 4
[2,5,1,3,4] => 5
[2,5,1,4,3] => 4
[2,5,3,1,4] => 4
[2,5,3,4,1] => 3
[2,5,4,1,3] => 4
[2,5,4,3,1] => 3
[3,1,2,4,5] => 3
[3,1,2,5,4] => 5
[3,1,4,2,5] => 4
[3,1,4,5,2] => 5
[3,1,5,2,4] => 5
[3,1,5,4,2] => 4
[3,2,1,4,5] => 2
[3,2,1,5,4] => 4
[3,2,4,1,5] => 3
[3,2,4,5,1] => 4
[3,2,5,1,4] => 4
[3,2,5,4,1] => 3
[3,4,1,2,5] => 4
[3,4,1,5,2] => 5
[3,4,2,1,5] => 3
[3,4,2,5,1] => 4
[3,4,5,1,2] => 5
[3,4,5,2,1] => 4
[3,5,1,2,4] => 5
[3,5,1,4,2] => 4
[3,5,2,1,4] => 4
[3,5,2,4,1] => 3
[3,5,4,1,2] => 4
[3,5,4,2,1] => 3
[4,1,2,3,5] => 4
[4,1,2,5,3] => 5
[4,1,3,2,5] => 3
[4,1,3,5,2] => 4
[4,1,5,2,3] => 5
[4,1,5,3,2] => 4
[4,2,1,3,5] => 3
[4,2,1,5,3] => 4
[4,2,3,1,5] => 2
[4,2,3,5,1] => 3
[4,2,5,1,3] => 4
[4,2,5,3,1] => 3
[4,3,1,2,5] => 3
[4,3,1,5,2] => 4
[4,3,2,1,5] => 2
[4,3,2,5,1] => 3
[4,3,5,1,2] => 4
[4,3,5,2,1] => 3
[4,5,1,2,3] => 5
[4,5,1,3,2] => 4
[4,5,2,1,3] => 4
[4,5,2,3,1] => 3
[4,5,3,1,2] => 4
[4,5,3,2,1] => 3
[5,1,2,3,4] => 5
[5,1,2,4,3] => 4
[5,1,3,2,4] => 4
[5,1,3,4,2] => 3
[5,1,4,2,3] => 4
[5,1,4,3,2] => 3
[5,2,1,3,4] => 4
[5,2,1,4,3] => 3
[5,2,3,1,4] => 3
[5,2,3,4,1] => 2
[5,2,4,1,3] => 3
[5,2,4,3,1] => 2
[5,3,1,2,4] => 4
[5,3,1,4,2] => 3
[5,3,2,1,4] => 3
[5,3,2,4,1] => 2
[5,3,4,1,2] => 3
[5,3,4,2,1] => 2
[5,4,1,2,3] => 4
[5,4,1,3,2] => 3
[5,4,2,1,3] => 3
[5,4,2,3,1] => 2
[5,4,3,1,2] => 3
[5,4,3,2,1] => 2
[1,2,3,4,5,6] => 0
[1,2,3,4,6,5] => 2
[1,2,3,5,4,6] => 2
[1,2,3,5,6,4] => 3
[1,2,3,6,4,5] => 3
[1,2,3,6,5,4] => 2
[1,2,4,3,5,6] => 2
[1,2,4,3,6,5] => 4
[1,2,4,5,3,6] => 3
[1,2,4,5,6,3] => 4
[1,2,4,6,3,5] => 4
[1,2,4,6,5,3] => 3
[1,2,5,3,4,6] => 3
[1,2,5,3,6,4] => 4
[1,2,5,4,3,6] => 2
[1,2,5,4,6,3] => 3
[1,2,5,6,3,4] => 4
[1,2,5,6,4,3] => 3
[1,2,6,3,4,5] => 4
[1,2,6,3,5,4] => 3
[1,2,6,4,3,5] => 3
[1,2,6,4,5,3] => 2
[1,2,6,5,3,4] => 3
[1,2,6,5,4,3] => 2
[1,3,2,4,5,6] => 2
[1,3,2,4,6,5] => 4
[1,3,2,5,4,6] => 4
[1,3,2,5,6,4] => 5
[1,3,2,6,4,5] => 5
[1,3,2,6,5,4] => 4
[1,3,4,2,5,6] => 3
[1,3,4,2,6,5] => 5
[1,3,4,5,2,6] => 4
[1,3,4,5,6,2] => 5
[1,3,4,6,2,5] => 5
[1,3,4,6,5,2] => 4
[1,3,5,2,4,6] => 4
[1,3,5,2,6,4] => 5
[1,3,5,4,2,6] => 3
[1,3,5,4,6,2] => 4
[1,3,5,6,2,4] => 5
[1,3,5,6,4,2] => 4
[1,3,6,2,4,5] => 5
[1,3,6,2,5,4] => 4
[1,3,6,4,2,5] => 4
[1,3,6,4,5,2] => 3
[1,3,6,5,2,4] => 4
[1,3,6,5,4,2] => 3
[1,4,2,3,5,6] => 3
[1,4,2,3,6,5] => 5
[1,4,2,5,3,6] => 4
[1,4,2,5,6,3] => 5
[1,4,2,6,3,5] => 5
[1,4,2,6,5,3] => 4
[1,4,3,2,5,6] => 2
[1,4,3,2,6,5] => 4
[1,4,3,5,2,6] => 3
[1,4,3,5,6,2] => 4
[1,4,3,6,2,5] => 4
[1,4,3,6,5,2] => 3
[1,4,5,2,3,6] => 4
[1,4,5,2,6,3] => 5
[1,4,5,3,2,6] => 3
[1,4,5,3,6,2] => 4
[1,4,5,6,2,3] => 5
[1,4,5,6,3,2] => 4
[1,4,6,2,3,5] => 5
[1,4,6,2,5,3] => 4
[1,4,6,3,2,5] => 4
[1,4,6,3,5,2] => 3
[1,4,6,5,2,3] => 4
[1,4,6,5,3,2] => 3
[1,5,2,3,4,6] => 4
[1,5,2,3,6,4] => 5
[1,5,2,4,3,6] => 3
[1,5,2,4,6,3] => 4
[1,5,2,6,3,4] => 5
[1,5,2,6,4,3] => 4
[1,5,3,2,4,6] => 3
[1,5,3,2,6,4] => 4
[1,5,3,4,2,6] => 2
[1,5,3,4,6,2] => 3
[1,5,3,6,2,4] => 4
[1,5,3,6,4,2] => 3
[1,5,4,2,3,6] => 3
[1,5,4,2,6,3] => 4
[1,5,4,3,2,6] => 2
[1,5,4,3,6,2] => 3
[1,5,4,6,2,3] => 4
[1,5,4,6,3,2] => 3
[1,5,6,2,3,4] => 5
[1,5,6,2,4,3] => 4
[1,5,6,3,2,4] => 4
[1,5,6,3,4,2] => 3
[1,5,6,4,2,3] => 4
[1,5,6,4,3,2] => 3
[1,6,2,3,4,5] => 5
[1,6,2,3,5,4] => 4
[1,6,2,4,3,5] => 4
[1,6,2,4,5,3] => 3
[1,6,2,5,3,4] => 4
[1,6,2,5,4,3] => 3
[1,6,3,2,4,5] => 4
[1,6,3,2,5,4] => 3
[1,6,3,4,2,5] => 3
[1,6,3,4,5,2] => 2
[1,6,3,5,2,4] => 3
[1,6,3,5,4,2] => 2
[1,6,4,2,3,5] => 4
[1,6,4,2,5,3] => 3
[1,6,4,3,2,5] => 3
[1,6,4,3,5,2] => 2
[1,6,4,5,2,3] => 3
[1,6,4,5,3,2] => 2
[1,6,5,2,3,4] => 4
[1,6,5,2,4,3] => 3
[1,6,5,3,2,4] => 3
[1,6,5,3,4,2] => 2
[1,6,5,4,2,3] => 3
[1,6,5,4,3,2] => 2
[2,1,3,4,5,6] => 2
[2,1,3,4,6,5] => 4
[2,1,3,5,4,6] => 4
[2,1,3,5,6,4] => 5
[2,1,3,6,4,5] => 5
[2,1,3,6,5,4] => 4
[2,1,4,3,5,6] => 4
[2,1,4,3,6,5] => 6
[2,1,4,5,3,6] => 5
[2,1,4,5,6,3] => 6
[2,1,4,6,3,5] => 6
[2,1,4,6,5,3] => 5
[2,1,5,3,4,6] => 5
[2,1,5,3,6,4] => 6
[2,1,5,4,3,6] => 4
[2,1,5,4,6,3] => 5
[2,1,5,6,3,4] => 6
[2,1,5,6,4,3] => 5
[2,1,6,3,4,5] => 6
[2,1,6,3,5,4] => 5
[2,1,6,4,3,5] => 5
[2,1,6,4,5,3] => 4
[2,1,6,5,3,4] => 5
[2,1,6,5,4,3] => 4
[2,3,1,4,5,6] => 3
[2,3,1,4,6,5] => 5
[2,3,1,5,4,6] => 5
[2,3,1,5,6,4] => 6
[2,3,1,6,4,5] => 6
[2,3,1,6,5,4] => 5
[2,3,4,1,5,6] => 4
[2,3,4,1,6,5] => 6
[2,3,4,5,1,6] => 5
[2,3,4,5,6,1] => 6
[2,3,4,6,1,5] => 6
[2,3,4,6,5,1] => 5
[2,3,5,1,4,6] => 5
[2,3,5,1,6,4] => 6
[2,3,5,4,1,6] => 4
[2,3,5,4,6,1] => 5
[2,3,5,6,1,4] => 6
[2,3,5,6,4,1] => 5
[2,3,6,1,4,5] => 6
[2,3,6,1,5,4] => 5
[2,3,6,4,1,5] => 5
[2,3,6,4,5,1] => 4
[2,3,6,5,1,4] => 5
[2,3,6,5,4,1] => 4
[2,4,1,3,5,6] => 4
[2,4,1,3,6,5] => 6
[2,4,1,5,3,6] => 5
[2,4,1,5,6,3] => 6
[2,4,1,6,3,5] => 6
[2,4,1,6,5,3] => 5
[2,4,3,1,5,6] => 3
[2,4,3,1,6,5] => 5
[2,4,3,5,1,6] => 4
[2,4,3,5,6,1] => 5
[2,4,3,6,1,5] => 5
[2,4,3,6,5,1] => 4
[2,4,5,1,3,6] => 5
[2,4,5,1,6,3] => 6
[2,4,5,3,1,6] => 4
[2,4,5,3,6,1] => 5
[2,4,5,6,1,3] => 6
[2,4,5,6,3,1] => 5
[2,4,6,1,3,5] => 6
[2,4,6,1,5,3] => 5
[2,4,6,3,1,5] => 5
[2,4,6,3,5,1] => 4
[2,4,6,5,1,3] => 5
[2,4,6,5,3,1] => 4
[2,5,1,3,4,6] => 5
[2,5,1,3,6,4] => 6
[2,5,1,4,3,6] => 4
[2,5,1,4,6,3] => 5
[2,5,1,6,3,4] => 6
[2,5,1,6,4,3] => 5
[2,5,3,1,4,6] => 4
[2,5,3,1,6,4] => 5
[2,5,3,4,1,6] => 3
[2,5,3,4,6,1] => 4
[2,5,3,6,1,4] => 5
[2,5,3,6,4,1] => 4
[2,5,4,1,3,6] => 4
[2,5,4,1,6,3] => 5
[2,5,4,3,1,6] => 3
[2,5,4,3,6,1] => 4
[2,5,4,6,1,3] => 5
[2,5,4,6,3,1] => 4
[2,5,6,1,3,4] => 6
[2,5,6,1,4,3] => 5
[2,5,6,3,1,4] => 5
[2,5,6,3,4,1] => 4
[2,5,6,4,1,3] => 5
[2,5,6,4,3,1] => 4
[2,6,1,3,4,5] => 6
[2,6,1,3,5,4] => 5
[2,6,1,4,3,5] => 5
[2,6,1,4,5,3] => 4
[2,6,1,5,3,4] => 5
[2,6,1,5,4,3] => 4
[2,6,3,1,4,5] => 5
[2,6,3,1,5,4] => 4
[2,6,3,4,1,5] => 4
[2,6,3,4,5,1] => 3
[2,6,3,5,1,4] => 4
[2,6,3,5,4,1] => 3
[2,6,4,1,3,5] => 5
[2,6,4,1,5,3] => 4
[2,6,4,3,1,5] => 4
[2,6,4,3,5,1] => 3
[2,6,4,5,1,3] => 4
[2,6,4,5,3,1] => 3
[2,6,5,1,3,4] => 5
[2,6,5,1,4,3] => 4
[2,6,5,3,1,4] => 4
[2,6,5,3,4,1] => 3
[2,6,5,4,1,3] => 4
[2,6,5,4,3,1] => 3
[3,1,2,4,5,6] => 3
[3,1,2,4,6,5] => 5
[3,1,2,5,4,6] => 5
[3,1,2,5,6,4] => 6
[3,1,2,6,4,5] => 6
[3,1,2,6,5,4] => 5
[3,1,4,2,5,6] => 4
[3,1,4,2,6,5] => 6
[3,1,4,5,2,6] => 5
[3,1,4,5,6,2] => 6
[3,1,4,6,2,5] => 6
[3,1,4,6,5,2] => 5
[3,1,5,2,4,6] => 5
[3,1,5,2,6,4] => 6
[3,1,5,4,2,6] => 4
[3,1,5,4,6,2] => 5
[3,1,5,6,2,4] => 6
[3,1,5,6,4,2] => 5
[3,1,6,2,4,5] => 6
[3,1,6,2,5,4] => 5
[3,1,6,4,2,5] => 5
[3,1,6,4,5,2] => 4
[3,1,6,5,2,4] => 5
[3,1,6,5,4,2] => 4
[3,2,1,4,5,6] => 2
[3,2,1,4,6,5] => 4
[3,2,1,5,4,6] => 4
[3,2,1,5,6,4] => 5
[3,2,1,6,4,5] => 5
[3,2,1,6,5,4] => 4
[3,2,4,1,5,6] => 3
[3,2,4,1,6,5] => 5
[3,2,4,5,1,6] => 4
[3,2,4,5,6,1] => 5
[3,2,4,6,1,5] => 5
[3,2,4,6,5,1] => 4
[3,2,5,1,4,6] => 4
[3,2,5,1,6,4] => 5
[3,2,5,4,1,6] => 3
[3,2,5,4,6,1] => 4
[3,2,5,6,1,4] => 5
[3,2,5,6,4,1] => 4
[3,2,6,1,4,5] => 5
[3,2,6,1,5,4] => 4
[3,2,6,4,1,5] => 4
[3,2,6,4,5,1] => 3
[3,2,6,5,1,4] => 4
[3,2,6,5,4,1] => 3
[3,4,1,2,5,6] => 4
[3,4,1,2,6,5] => 6
[3,4,1,5,2,6] => 5
[3,4,1,5,6,2] => 6
[3,4,1,6,2,5] => 6
[3,4,1,6,5,2] => 5
[3,4,2,1,5,6] => 3
[3,4,2,1,6,5] => 5
[3,4,2,5,1,6] => 4
[3,4,2,5,6,1] => 5
[3,4,2,6,1,5] => 5
[3,4,2,6,5,1] => 4
[3,4,5,1,2,6] => 5
[3,4,5,1,6,2] => 6
[3,4,5,2,1,6] => 4
[3,4,5,2,6,1] => 5
[3,4,5,6,1,2] => 6
[3,4,5,6,2,1] => 5
[3,4,6,1,2,5] => 6
[3,4,6,1,5,2] => 5
[3,4,6,2,1,5] => 5
[3,4,6,2,5,1] => 4
[3,4,6,5,1,2] => 5
[3,4,6,5,2,1] => 4
[3,5,1,2,4,6] => 5
[3,5,1,2,6,4] => 6
[3,5,1,4,2,6] => 4
[3,5,1,4,6,2] => 5
[3,5,1,6,2,4] => 6
[3,5,1,6,4,2] => 5
[3,5,2,1,4,6] => 4
[3,5,2,1,6,4] => 5
[3,5,2,4,1,6] => 3
[3,5,2,4,6,1] => 4
[3,5,2,6,1,4] => 5
[3,5,2,6,4,1] => 4
[3,5,4,1,2,6] => 4
[3,5,4,1,6,2] => 5
[3,5,4,2,1,6] => 3
[3,5,4,2,6,1] => 4
[3,5,4,6,1,2] => 5
[3,5,4,6,2,1] => 4
[3,5,6,1,2,4] => 6
[3,5,6,1,4,2] => 5
[3,5,6,2,1,4] => 5
[3,5,6,2,4,1] => 4
[3,5,6,4,1,2] => 5
[3,5,6,4,2,1] => 4
[3,6,1,2,4,5] => 6
[3,6,1,2,5,4] => 5
[3,6,1,4,2,5] => 5
[3,6,1,4,5,2] => 4
[3,6,1,5,2,4] => 5
[3,6,1,5,4,2] => 4
[3,6,2,1,4,5] => 5
[3,6,2,1,5,4] => 4
[3,6,2,4,1,5] => 4
[3,6,2,4,5,1] => 3
[3,6,2,5,1,4] => 4
[3,6,2,5,4,1] => 3
[3,6,4,1,2,5] => 5
[3,6,4,1,5,2] => 4
[3,6,4,2,1,5] => 4
[3,6,4,2,5,1] => 3
[3,6,4,5,1,2] => 4
[3,6,4,5,2,1] => 3
[3,6,5,1,2,4] => 5
[3,6,5,1,4,2] => 4
[3,6,5,2,1,4] => 4
[3,6,5,2,4,1] => 3
[3,6,5,4,1,2] => 4
[3,6,5,4,2,1] => 3
[4,1,2,3,5,6] => 4
[4,1,2,3,6,5] => 6
[4,1,2,5,3,6] => 5
[4,1,2,5,6,3] => 6
[4,1,2,6,3,5] => 6
[4,1,2,6,5,3] => 5
[4,1,3,2,5,6] => 3
[4,1,3,2,6,5] => 5
[4,1,3,5,2,6] => 4
[4,1,3,5,6,2] => 5
[4,1,3,6,2,5] => 5
[4,1,3,6,5,2] => 4
[4,1,5,2,3,6] => 5
[4,1,5,2,6,3] => 6
[4,1,5,3,2,6] => 4
[4,1,5,3,6,2] => 5
[4,1,5,6,2,3] => 6
[4,1,5,6,3,2] => 5
[4,1,6,2,3,5] => 6
[4,1,6,2,5,3] => 5
[4,1,6,3,2,5] => 5
[4,1,6,3,5,2] => 4
[4,1,6,5,2,3] => 5
[4,1,6,5,3,2] => 4
[4,2,1,3,5,6] => 3
[4,2,1,3,6,5] => 5
[4,2,1,5,3,6] => 4
[4,2,1,5,6,3] => 5
[4,2,1,6,3,5] => 5
[4,2,1,6,5,3] => 4
[4,2,3,1,5,6] => 2
[4,2,3,1,6,5] => 4
[4,2,3,5,1,6] => 3
[4,2,3,5,6,1] => 4
[4,2,3,6,1,5] => 4
[4,2,3,6,5,1] => 3
[4,2,5,1,3,6] => 4
[4,2,5,1,6,3] => 5
[4,2,5,3,1,6] => 3
[4,2,5,3,6,1] => 4
[4,2,5,6,1,3] => 5
[4,2,5,6,3,1] => 4
[4,2,6,1,3,5] => 5
[4,2,6,1,5,3] => 4
[4,2,6,3,1,5] => 4
[4,2,6,3,5,1] => 3
[4,2,6,5,1,3] => 4
[4,2,6,5,3,1] => 3
[4,3,1,2,5,6] => 3
[4,3,1,2,6,5] => 5
[4,3,1,5,2,6] => 4
[4,3,1,5,6,2] => 5
[4,3,1,6,2,5] => 5
[4,3,1,6,5,2] => 4
[4,3,2,1,5,6] => 2
[4,3,2,1,6,5] => 4
[4,3,2,5,1,6] => 3
[4,3,2,5,6,1] => 4
[4,3,2,6,1,5] => 4
[4,3,2,6,5,1] => 3
[4,3,5,1,2,6] => 4
[4,3,5,1,6,2] => 5
[4,3,5,2,1,6] => 3
[4,3,5,2,6,1] => 4
[4,3,5,6,1,2] => 5
[4,3,5,6,2,1] => 4
[4,3,6,1,2,5] => 5
[4,3,6,1,5,2] => 4
[4,3,6,2,1,5] => 4
[4,3,6,2,5,1] => 3
[4,3,6,5,1,2] => 4
[4,3,6,5,2,1] => 3
[4,5,1,2,3,6] => 5
[4,5,1,2,6,3] => 6
[4,5,1,3,2,6] => 4
[4,5,1,3,6,2] => 5
[4,5,1,6,2,3] => 6
[4,5,1,6,3,2] => 5
[4,5,2,1,3,6] => 4
[4,5,2,1,6,3] => 5
[4,5,2,3,1,6] => 3
[4,5,2,3,6,1] => 4
[4,5,2,6,1,3] => 5
[4,5,2,6,3,1] => 4
[4,5,3,1,2,6] => 4
[4,5,3,1,6,2] => 5
[4,5,3,2,1,6] => 3
[4,5,3,2,6,1] => 4
[4,5,3,6,1,2] => 5
[4,5,3,6,2,1] => 4
[4,5,6,1,2,3] => 6
[4,5,6,1,3,2] => 5
[4,5,6,2,1,3] => 5
[4,5,6,2,3,1] => 4
[4,5,6,3,1,2] => 5
[4,5,6,3,2,1] => 4
[4,6,1,2,3,5] => 6
[4,6,1,2,5,3] => 5
[4,6,1,3,2,5] => 5
[4,6,1,3,5,2] => 4
[4,6,1,5,2,3] => 5
[4,6,1,5,3,2] => 4
[4,6,2,1,3,5] => 5
[4,6,2,1,5,3] => 4
[4,6,2,3,1,5] => 4
[4,6,2,3,5,1] => 3
[4,6,2,5,1,3] => 4
[4,6,2,5,3,1] => 3
[4,6,3,1,2,5] => 5
[4,6,3,1,5,2] => 4
[4,6,3,2,1,5] => 4
[4,6,3,2,5,1] => 3
[4,6,3,5,1,2] => 4
[4,6,3,5,2,1] => 3
[4,6,5,1,2,3] => 5
[4,6,5,1,3,2] => 4
[4,6,5,2,1,3] => 4
[4,6,5,2,3,1] => 3
[4,6,5,3,1,2] => 4
[4,6,5,3,2,1] => 3
[5,1,2,3,4,6] => 5
[5,1,2,3,6,4] => 6
[5,1,2,4,3,6] => 4
[5,1,2,4,6,3] => 5
[5,1,2,6,3,4] => 6
[5,1,2,6,4,3] => 5
[5,1,3,2,4,6] => 4
[5,1,3,2,6,4] => 5
[5,1,3,4,2,6] => 3
[5,1,3,4,6,2] => 4
[5,1,3,6,2,4] => 5
[5,1,3,6,4,2] => 4
[5,1,4,2,3,6] => 4
[5,1,4,2,6,3] => 5
[5,1,4,3,2,6] => 3
[5,1,4,3,6,2] => 4
[5,1,4,6,2,3] => 5
[5,1,4,6,3,2] => 4
[5,1,6,2,3,4] => 6
[5,1,6,2,4,3] => 5
[5,1,6,3,2,4] => 5
[5,1,6,3,4,2] => 4
[5,1,6,4,2,3] => 5
[5,1,6,4,3,2] => 4
[5,2,1,3,4,6] => 4
[5,2,1,3,6,4] => 5
[5,2,1,4,3,6] => 3
[5,2,1,4,6,3] => 4
[5,2,1,6,3,4] => 5
[5,2,1,6,4,3] => 4
[5,2,3,1,4,6] => 3
[5,2,3,1,6,4] => 4
[5,2,3,4,1,6] => 2
[5,2,3,4,6,1] => 3
[5,2,3,6,1,4] => 4
[5,2,3,6,4,1] => 3
[5,2,4,1,3,6] => 3
[5,2,4,1,6,3] => 4
[5,2,4,3,1,6] => 2
[5,2,4,3,6,1] => 3
[5,2,4,6,1,3] => 4
[5,2,4,6,3,1] => 3
[5,2,6,1,3,4] => 5
[5,2,6,1,4,3] => 4
[5,2,6,3,1,4] => 4
[5,2,6,3,4,1] => 3
[5,2,6,4,1,3] => 4
[5,2,6,4,3,1] => 3
[5,3,1,2,4,6] => 4
[5,3,1,2,6,4] => 5
[5,3,1,4,2,6] => 3
[5,3,1,4,6,2] => 4
[5,3,1,6,2,4] => 5
[5,3,1,6,4,2] => 4
[5,3,2,1,4,6] => 3
[5,3,2,1,6,4] => 4
[5,3,2,4,1,6] => 2
[5,3,2,4,6,1] => 3
[5,3,2,6,1,4] => 4
[5,3,2,6,4,1] => 3
[5,3,4,1,2,6] => 3
[5,3,4,1,6,2] => 4
[5,3,4,2,1,6] => 2
[5,3,4,2,6,1] => 3
[5,3,4,6,1,2] => 4
[5,3,4,6,2,1] => 3
[5,3,6,1,2,4] => 5
[5,3,6,1,4,2] => 4
[5,3,6,2,1,4] => 4
[5,3,6,2,4,1] => 3
[5,3,6,4,1,2] => 4
[5,3,6,4,2,1] => 3
[5,4,1,2,3,6] => 4
[5,4,1,2,6,3] => 5
[5,4,1,3,2,6] => 3
[5,4,1,3,6,2] => 4
[5,4,1,6,2,3] => 5
[5,4,1,6,3,2] => 4
[5,4,2,1,3,6] => 3
[5,4,2,1,6,3] => 4
[5,4,2,3,1,6] => 2
[5,4,2,3,6,1] => 3
[5,4,2,6,1,3] => 4
[5,4,2,6,3,1] => 3
[5,4,3,1,2,6] => 3
[5,4,3,1,6,2] => 4
[5,4,3,2,1,6] => 2
[5,4,3,2,6,1] => 3
[5,4,3,6,1,2] => 4
[5,4,3,6,2,1] => 3
[5,4,6,1,2,3] => 5
[5,4,6,1,3,2] => 4
[5,4,6,2,1,3] => 4
[5,4,6,2,3,1] => 3
[5,4,6,3,1,2] => 4
[5,4,6,3,2,1] => 3
[5,6,1,2,3,4] => 6
[5,6,1,2,4,3] => 5
[5,6,1,3,2,4] => 5
[5,6,1,3,4,2] => 4
[5,6,1,4,2,3] => 5
[5,6,1,4,3,2] => 4
[5,6,2,1,3,4] => 5
[5,6,2,1,4,3] => 4
[5,6,2,3,1,4] => 4
[5,6,2,3,4,1] => 3
[5,6,2,4,1,3] => 4
[5,6,2,4,3,1] => 3
[5,6,3,1,2,4] => 5
[5,6,3,1,4,2] => 4
[5,6,3,2,1,4] => 4
[5,6,3,2,4,1] => 3
[5,6,3,4,1,2] => 4
[5,6,3,4,2,1] => 3
[5,6,4,1,2,3] => 5
[5,6,4,1,3,2] => 4
[5,6,4,2,1,3] => 4
[5,6,4,2,3,1] => 3
[5,6,4,3,1,2] => 4
[5,6,4,3,2,1] => 3
[6,1,2,3,4,5] => 6
[6,1,2,3,5,4] => 5
[6,1,2,4,3,5] => 5
[6,1,2,4,5,3] => 4
[6,1,2,5,3,4] => 5
[6,1,2,5,4,3] => 4
[6,1,3,2,4,5] => 5
[6,1,3,2,5,4] => 4
[6,1,3,4,2,5] => 4
[6,1,3,4,5,2] => 3
[6,1,3,5,2,4] => 4
[6,1,3,5,4,2] => 3
[6,1,4,2,3,5] => 5
[6,1,4,2,5,3] => 4
[6,1,4,3,2,5] => 4
[6,1,4,3,5,2] => 3
[6,1,4,5,2,3] => 4
[6,1,4,5,3,2] => 3
[6,1,5,2,3,4] => 5
[6,1,5,2,4,3] => 4
[6,1,5,3,2,4] => 4
[6,1,5,3,4,2] => 3
[6,1,5,4,2,3] => 4
[6,1,5,4,3,2] => 3
[6,2,1,3,4,5] => 5
[6,2,1,3,5,4] => 4
[6,2,1,4,3,5] => 4
[6,2,1,4,5,3] => 3
[6,2,1,5,3,4] => 4
[6,2,1,5,4,3] => 3
[6,2,3,1,4,5] => 4
[6,2,3,1,5,4] => 3
[6,2,3,4,1,5] => 3
[6,2,3,4,5,1] => 2
[6,2,3,5,1,4] => 3
[6,2,3,5,4,1] => 2
[6,2,4,1,3,5] => 4
[6,2,4,1,5,3] => 3
[6,2,4,3,1,5] => 3
[6,2,4,3,5,1] => 2
[6,2,4,5,1,3] => 3
[6,2,4,5,3,1] => 2
[6,2,5,1,3,4] => 4
[6,2,5,1,4,3] => 3
[6,2,5,3,1,4] => 3
[6,2,5,3,4,1] => 2
[6,2,5,4,1,3] => 3
[6,2,5,4,3,1] => 2
[6,3,1,2,4,5] => 5
[6,3,1,2,5,4] => 4
[6,3,1,4,2,5] => 4
[6,3,1,4,5,2] => 3
[6,3,1,5,2,4] => 4
[6,3,1,5,4,2] => 3
[6,3,2,1,4,5] => 4
[6,3,2,1,5,4] => 3
[6,3,2,4,1,5] => 3
[6,3,2,4,5,1] => 2
[6,3,2,5,1,4] => 3
[6,3,2,5,4,1] => 2
[6,3,4,1,2,5] => 4
[6,3,4,1,5,2] => 3
[6,3,4,2,1,5] => 3
[6,3,4,2,5,1] => 2
[6,3,4,5,1,2] => 3
[6,3,4,5,2,1] => 2
[6,3,5,1,2,4] => 4
[6,3,5,1,4,2] => 3
[6,3,5,2,1,4] => 3
[6,3,5,2,4,1] => 2
[6,3,5,4,1,2] => 3
[6,3,5,4,2,1] => 2
[6,4,1,2,3,5] => 5
[6,4,1,2,5,3] => 4
[6,4,1,3,2,5] => 4
[6,4,1,3,5,2] => 3
[6,4,1,5,2,3] => 4
[6,4,1,5,3,2] => 3
[6,4,2,1,3,5] => 4
[6,4,2,1,5,3] => 3
[6,4,2,3,1,5] => 3
[6,4,2,3,5,1] => 2
[6,4,2,5,1,3] => 3
[6,4,2,5,3,1] => 2
[6,4,3,1,2,5] => 4
[6,4,3,1,5,2] => 3
[6,4,3,2,1,5] => 3
[6,4,3,2,5,1] => 2
[6,4,3,5,1,2] => 3
[6,4,3,5,2,1] => 2
[6,4,5,1,2,3] => 4
[6,4,5,1,3,2] => 3
[6,4,5,2,1,3] => 3
[6,4,5,2,3,1] => 2
[6,4,5,3,1,2] => 3
[6,4,5,3,2,1] => 2
[6,5,1,2,3,4] => 5
[6,5,1,2,4,3] => 4
[6,5,1,3,2,4] => 4
[6,5,1,3,4,2] => 3
[6,5,1,4,2,3] => 4
[6,5,1,4,3,2] => 3
[6,5,2,1,3,4] => 4
[6,5,2,1,4,3] => 3
[6,5,2,3,1,4] => 3
[6,5,2,3,4,1] => 2
[6,5,2,4,1,3] => 3
[6,5,2,4,3,1] => 2
[6,5,3,1,2,4] => 4
[6,5,3,1,4,2] => 3
[6,5,3,2,1,4] => 3
[6,5,3,2,4,1] => 2
[6,5,3,4,1,2] => 3
[6,5,3,4,2,1] => 2
[6,5,4,1,2,3] => 4
[6,5,4,1,3,2] => 3
[6,5,4,2,1,3] => 3
[6,5,4,2,3,1] => 2
[6,5,4,3,1,2] => 3
[6,5,4,3,2,1] => 2
[1,2,3,4,5,6,7] => 0
[1,2,3,4,5,7,6] => 2
[1,2,3,4,6,5,7] => 2
[1,2,3,4,6,7,5] => 3
[1,2,3,4,7,5,6] => 3
[1,2,3,4,7,6,5] => 2
[1,2,3,5,4,6,7] => 2
[1,2,3,5,4,7,6] => 4
[1,2,3,5,6,4,7] => 3
[1,2,3,5,6,7,4] => 4
[1,2,3,5,7,4,6] => 4
[1,2,3,5,7,6,4] => 3
[1,2,3,6,4,5,7] => 3
[1,2,3,6,4,7,5] => 4
[1,2,3,6,5,4,7] => 2
[1,2,3,6,5,7,4] => 3
[1,2,3,6,7,4,5] => 4
[1,2,3,6,7,5,4] => 3
[1,2,3,7,4,5,6] => 4
[1,2,3,7,4,6,5] => 3
[1,2,3,7,5,4,6] => 3
[1,2,3,7,5,6,4] => 2
[1,2,3,7,6,4,5] => 3
[1,2,3,7,6,5,4] => 2
[1,2,4,3,5,6,7] => 2
[1,2,4,3,5,7,6] => 4
[1,2,4,3,6,5,7] => 4
[1,2,4,3,6,7,5] => 5
[1,2,4,3,7,5,6] => 5
[1,2,4,3,7,6,5] => 4
[1,2,4,5,3,6,7] => 3
[1,2,4,5,3,7,6] => 5
[1,2,4,5,6,3,7] => 4
[1,2,4,5,6,7,3] => 5
[1,2,4,5,7,3,6] => 5
[1,2,4,5,7,6,3] => 4
[1,2,4,6,3,5,7] => 4
[1,2,4,6,3,7,5] => 5
[1,2,4,6,5,3,7] => 3
[1,2,4,6,5,7,3] => 4
[1,2,4,6,7,3,5] => 5
[1,2,4,6,7,5,3] => 4
[1,2,4,7,3,5,6] => 5
[1,2,4,7,3,6,5] => 4
[1,2,4,7,5,3,6] => 4
[1,2,4,7,5,6,3] => 3
[1,2,4,7,6,3,5] => 4
[1,2,4,7,6,5,3] => 3
[1,2,5,3,4,6,7] => 3
[1,2,5,3,4,7,6] => 5
[1,2,5,3,6,4,7] => 4
[1,2,5,3,6,7,4] => 5
[1,2,5,3,7,4,6] => 5
[1,2,5,3,7,6,4] => 4
[1,2,5,4,3,6,7] => 2
[1,2,5,4,3,7,6] => 4
[1,2,5,4,6,3,7] => 3
[1,2,5,4,6,7,3] => 4
[1,2,5,4,7,3,6] => 4
[1,2,5,4,7,6,3] => 3
[1,2,5,6,3,4,7] => 4
[1,2,5,6,3,7,4] => 5
[1,2,5,6,4,3,7] => 3
[1,2,5,6,4,7,3] => 4
[1,2,5,6,7,3,4] => 5
[1,2,5,6,7,4,3] => 4
[1,2,5,7,3,4,6] => 5
[1,2,5,7,3,6,4] => 4
[1,2,5,7,4,3,6] => 4
[1,2,5,7,4,6,3] => 3
[1,2,5,7,6,3,4] => 4
[1,2,5,7,6,4,3] => 3
[1,2,6,3,4,5,7] => 4
[1,2,6,3,4,7,5] => 5
[1,2,6,3,5,4,7] => 3
[1,2,6,3,5,7,4] => 4
[1,2,6,3,7,4,5] => 5
[1,2,6,3,7,5,4] => 4
[1,2,6,4,3,5,7] => 3
[1,2,6,4,3,7,5] => 4
[1,2,6,4,5,3,7] => 2
[1,2,6,4,5,7,3] => 3
[1,2,6,4,7,3,5] => 4
[1,2,6,4,7,5,3] => 3
[1,2,6,5,3,4,7] => 3
[1,2,6,5,3,7,4] => 4
[1,2,6,5,4,3,7] => 2
[1,2,6,5,4,7,3] => 3
[1,2,6,5,7,3,4] => 4
[1,2,6,5,7,4,3] => 3
[1,2,6,7,3,4,5] => 5
[1,2,6,7,3,5,4] => 4
[1,2,6,7,4,3,5] => 4
[1,2,6,7,4,5,3] => 3
[1,2,6,7,5,3,4] => 4
[1,2,6,7,5,4,3] => 3
[1,2,7,3,4,5,6] => 5
[1,2,7,3,4,6,5] => 4
[1,2,7,3,5,4,6] => 4
[1,2,7,3,5,6,4] => 3
[1,2,7,3,6,4,5] => 4
[1,2,7,3,6,5,4] => 3
[1,2,7,4,3,5,6] => 4
[1,2,7,4,3,6,5] => 3
[1,2,7,4,5,3,6] => 3
[1,2,7,4,5,6,3] => 2
[1,2,7,4,6,3,5] => 3
[1,2,7,4,6,5,3] => 2
[1,2,7,5,3,4,6] => 4
[1,2,7,5,3,6,4] => 3
[1,2,7,5,4,3,6] => 3
[1,2,7,5,4,6,3] => 2
[1,2,7,5,6,3,4] => 3
[1,2,7,5,6,4,3] => 2
[1,2,7,6,3,4,5] => 4
[1,2,7,6,3,5,4] => 3
[1,2,7,6,4,3,5] => 3
[1,2,7,6,4,5,3] => 2
[1,2,7,6,5,3,4] => 3
[1,2,7,6,5,4,3] => 2
[1,3,2,4,5,6,7] => 2
[1,3,2,4,5,7,6] => 4
[1,3,2,4,6,5,7] => 4
[1,3,2,4,6,7,5] => 5
[1,3,2,4,7,5,6] => 5
[1,3,2,4,7,6,5] => 4
[1,3,2,5,4,6,7] => 4
[1,3,2,5,4,7,6] => 6
[1,3,2,5,6,4,7] => 5
[1,3,2,5,6,7,4] => 6
[1,3,2,5,7,4,6] => 6
[1,3,2,5,7,6,4] => 5
[1,3,2,6,4,5,7] => 5
[1,3,2,6,4,7,5] => 6
[1,3,2,6,5,4,7] => 4
[1,3,2,6,5,7,4] => 5
[1,3,2,6,7,4,5] => 6
[1,3,2,6,7,5,4] => 5
[1,3,2,7,4,5,6] => 6
[1,3,2,7,4,6,5] => 5
[1,3,2,7,5,4,6] => 5
[1,3,2,7,5,6,4] => 4
[1,3,2,7,6,4,5] => 5
[1,3,2,7,6,5,4] => 4
[1,3,4,2,5,6,7] => 3
[1,3,4,2,5,7,6] => 5
[1,3,4,2,6,5,7] => 5
[1,3,4,2,6,7,5] => 6
[1,3,4,2,7,5,6] => 6
[1,3,4,2,7,6,5] => 5
[1,3,4,5,2,6,7] => 4
[1,3,4,5,2,7,6] => 6
[1,3,4,5,6,2,7] => 5
[1,3,4,5,6,7,2] => 6
[1,3,4,5,7,2,6] => 6
[1,3,4,5,7,6,2] => 5
[1,3,4,6,2,5,7] => 5
[1,3,4,6,2,7,5] => 6
[1,3,4,6,5,2,7] => 4
[1,3,4,6,5,7,2] => 5
[1,3,4,6,7,2,5] => 6
[1,3,4,6,7,5,2] => 5
[1,3,4,7,2,5,6] => 6
[1,3,4,7,2,6,5] => 5
[1,3,4,7,5,2,6] => 5
[1,3,4,7,5,6,2] => 4
[1,3,4,7,6,2,5] => 5
[1,3,4,7,6,5,2] => 4
[1,3,5,2,4,6,7] => 4
[1,3,5,2,4,7,6] => 6
[1,3,5,2,6,4,7] => 5
[1,3,5,2,6,7,4] => 6
[1,3,5,2,7,4,6] => 6
[1,3,5,2,7,6,4] => 5
[1,3,5,4,2,6,7] => 3
[1,3,5,4,2,7,6] => 5
[1,3,5,4,6,2,7] => 4
[1,3,5,4,6,7,2] => 5
[1,3,5,4,7,2,6] => 5
[1,3,5,4,7,6,2] => 4
[1,3,5,6,2,4,7] => 5
[1,3,5,6,2,7,4] => 6
[1,3,5,6,4,2,7] => 4
[1,3,5,6,4,7,2] => 5
[1,3,5,6,7,2,4] => 6
[1,3,5,6,7,4,2] => 5
[1,3,5,7,2,4,6] => 6
[1,3,5,7,2,6,4] => 5
[1,3,5,7,4,2,6] => 5
[1,3,5,7,4,6,2] => 4
[1,3,5,7,6,2,4] => 5
[1,3,5,7,6,4,2] => 4
[1,3,6,2,4,5,7] => 5
[1,3,6,2,4,7,5] => 6
[1,3,6,2,5,4,7] => 4
[1,3,6,2,5,7,4] => 5
[1,3,6,2,7,4,5] => 6
[1,3,6,2,7,5,4] => 5
[1,3,6,4,2,5,7] => 4
[1,3,6,4,2,7,5] => 5
[1,3,6,4,5,2,7] => 3
[1,3,6,4,5,7,2] => 4
[1,3,6,4,7,2,5] => 5
[1,3,6,4,7,5,2] => 4
[1,3,6,5,2,4,7] => 4
[1,3,6,5,2,7,4] => 5
[1,3,6,5,4,2,7] => 3
[1,3,6,5,4,7,2] => 4
[1,3,6,5,7,2,4] => 5
[1,3,6,5,7,4,2] => 4
[1,3,6,7,2,4,5] => 6
[1,3,6,7,2,5,4] => 5
[1,3,6,7,4,2,5] => 5
[1,3,6,7,4,5,2] => 4
[1,3,6,7,5,2,4] => 5
[1,3,6,7,5,4,2] => 4
[1,3,7,2,4,5,6] => 6
[1,3,7,2,4,6,5] => 5
[1,3,7,2,5,4,6] => 5
[1,3,7,2,5,6,4] => 4
[1,3,7,2,6,4,5] => 5
[1,3,7,2,6,5,4] => 4
[1,3,7,4,2,5,6] => 5
[1,3,7,4,2,6,5] => 4
[1,3,7,4,5,2,6] => 4
[1,3,7,4,5,6,2] => 3
[1,3,7,4,6,2,5] => 4
[1,3,7,4,6,5,2] => 3
[1,3,7,5,2,4,6] => 5
[1,3,7,5,2,6,4] => 4
[1,3,7,5,4,2,6] => 4
[1,3,7,5,4,6,2] => 3
[1,3,7,5,6,2,4] => 4
[1,3,7,5,6,4,2] => 3
[1,3,7,6,2,4,5] => 5
[1,3,7,6,2,5,4] => 4
[1,3,7,6,4,2,5] => 4
[1,3,7,6,4,5,2] => 3
[1,3,7,6,5,2,4] => 4
[1,3,7,6,5,4,2] => 3
[1,4,2,3,5,6,7] => 3
[1,4,2,3,5,7,6] => 5
[1,4,2,3,6,5,7] => 5
[1,4,2,3,6,7,5] => 6
[1,4,2,3,7,5,6] => 6
[1,4,2,3,7,6,5] => 5
[1,4,2,5,3,6,7] => 4
[1,4,2,5,3,7,6] => 6
[1,4,2,5,6,3,7] => 5
[1,4,2,5,6,7,3] => 6
[1,4,2,5,7,3,6] => 6
[1,4,2,5,7,6,3] => 5
[1,4,2,6,3,5,7] => 5
[1,4,2,6,3,7,5] => 6
[1,4,2,6,5,3,7] => 4
[1,4,2,6,5,7,3] => 5
[1,4,2,6,7,3,5] => 6
[1,4,2,6,7,5,3] => 5
[1,4,2,7,3,5,6] => 6
[1,4,2,7,3,6,5] => 5
[1,4,2,7,5,3,6] => 5
[1,4,2,7,5,6,3] => 4
[1,4,2,7,6,3,5] => 5
[1,4,2,7,6,5,3] => 4
[1,4,3,2,5,6,7] => 2
[1,4,3,2,5,7,6] => 4
[1,4,3,2,6,5,7] => 4
[1,4,3,2,6,7,5] => 5
[1,4,3,2,7,5,6] => 5
[1,4,3,2,7,6,5] => 4
[1,4,3,5,2,6,7] => 3
[1,4,3,5,2,7,6] => 5
[1,4,3,5,6,2,7] => 4
[1,4,3,5,6,7,2] => 5
[1,4,3,5,7,2,6] => 5
[1,4,3,5,7,6,2] => 4
[1,4,3,6,2,5,7] => 4
[1,4,3,6,2,7,5] => 5
[1,4,3,6,5,2,7] => 3
[1,4,3,6,5,7,2] => 4
[1,4,3,6,7,2,5] => 5
[1,4,3,6,7,5,2] => 4
[1,4,3,7,2,5,6] => 5
[1,4,3,7,2,6,5] => 4
[1,4,3,7,5,2,6] => 4
[1,4,3,7,5,6,2] => 3
[1,4,3,7,6,2,5] => 4
[1,4,3,7,6,5,2] => 3
[1,4,5,2,3,6,7] => 4
[1,4,5,2,3,7,6] => 6
[1,4,5,2,6,3,7] => 5
[1,4,5,2,6,7,3] => 6
[1,4,5,2,7,3,6] => 6
[1,4,5,2,7,6,3] => 5
[1,4,5,3,2,6,7] => 3
[1,4,5,3,2,7,6] => 5
[1,4,5,3,6,2,7] => 4
[1,4,5,3,6,7,2] => 5
[1,4,5,3,7,2,6] => 5
[1,4,5,3,7,6,2] => 4
[1,4,5,6,2,3,7] => 5
[1,4,5,6,2,7,3] => 6
[1,4,5,6,3,2,7] => 4
[1,4,5,6,3,7,2] => 5
[1,4,5,6,7,2,3] => 6
[1,4,5,6,7,3,2] => 5
[1,4,5,7,2,3,6] => 6
[1,4,5,7,2,6,3] => 5
[1,4,5,7,3,2,6] => 5
[1,4,5,7,3,6,2] => 4
[1,4,5,7,6,2,3] => 5
[1,4,5,7,6,3,2] => 4
[1,4,6,2,3,5,7] => 5
[1,4,6,2,3,7,5] => 6
[1,4,6,2,5,3,7] => 4
[1,4,6,2,5,7,3] => 5
[1,4,6,2,7,3,5] => 6
[1,4,6,2,7,5,3] => 5
[1,4,6,3,2,5,7] => 4
[1,4,6,3,2,7,5] => 5
[1,4,6,3,5,2,7] => 3
[1,4,6,3,5,7,2] => 4
[1,4,6,3,7,2,5] => 5
[1,4,6,3,7,5,2] => 4
[1,4,6,5,2,3,7] => 4
[1,4,6,5,2,7,3] => 5
[1,4,6,5,3,2,7] => 3
[1,4,6,5,3,7,2] => 4
click to show generating function       
Description
The number of indices for a permutation that are either left-to-right maxima or right-to-left minima but not both.
Code
def rlmin(pi):
    n = len(pi)
    m = n+1
    I = []
    for i in range(n):
        if pi[n-1-i] < m:
            I.append(n-i)
            m = pi[n-1-i]
    return I

def lrmax(pi):
    m = 0
    I = []
    for i in range(len(pi)):
        if pi[i] > m:
            I.append(i+1)
            m = pi[i]
    return I

def statistic(pi):
    return len(set(lrmax(pi)).symmetric_difference(rlmin(pi)))
Created
Oct 26, 2017 at 17:51 by Christian Stump
Updated
Jan 13, 2018 at 15:50 by Martin Rubey