Identifier
Identifier
Values
[1] => 0
[1,2] => 0
[2,1] => 1
[1,2,3] => 0
[1,3,2] => 1
[2,1,3] => 1
[2,3,1] => 1
[3,1,2] => 3
[3,2,1] => 2
[1,2,3,4] => 0
[1,2,4,3] => 1
[1,3,2,4] => 1
[1,3,4,2] => 1
[1,4,2,3] => 3
[1,4,3,2] => 2
[2,1,3,4] => 1
[2,1,4,3] => 2
[2,3,1,4] => 1
[2,3,4,1] => 1
[2,4,1,3] => 3
[2,4,3,1] => 2
[3,1,2,4] => 3
[3,1,4,2] => 3
[3,2,1,4] => 2
[3,2,4,1] => 2
[3,4,1,2] => 4
[3,4,2,1] => 4
[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] => 3
[1,2,3,4,5] => 0
[1,2,3,5,4] => 1
[1,2,4,3,5] => 1
[1,2,4,5,3] => 1
[1,2,5,3,4] => 3
[1,2,5,4,3] => 2
[1,3,2,4,5] => 1
[1,3,2,5,4] => 2
[1,3,4,2,5] => 1
[1,3,4,5,2] => 1
[1,3,5,2,4] => 3
[1,3,5,4,2] => 2
[1,4,2,3,5] => 3
[1,4,2,5,3] => 3
[1,4,3,2,5] => 2
[1,4,3,5,2] => 2
[1,4,5,2,3] => 4
[1,4,5,3,2] => 4
[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] => 3
[2,1,3,4,5] => 1
[2,1,3,5,4] => 2
[2,1,4,3,5] => 2
[2,1,4,5,3] => 2
[2,1,5,3,4] => 4
[2,1,5,4,3] => 3
[2,3,1,4,5] => 1
[2,3,1,5,4] => 2
[2,3,4,1,5] => 1
[2,3,4,5,1] => 1
[2,3,5,1,4] => 3
[2,3,5,4,1] => 2
[2,4,1,3,5] => 3
[2,4,1,5,3] => 3
[2,4,3,1,5] => 2
[2,4,3,5,1] => 2
[2,4,5,1,3] => 4
[2,4,5,3,1] => 4
[2,5,1,3,4] => 4
[2,5,1,4,3] => 3
[2,5,3,1,4] => 3
[2,5,3,4,1] => 2
[2,5,4,1,3] => 3
[2,5,4,3,1] => 3
[3,1,2,4,5] => 3
[3,1,2,5,4] => 4
[3,1,4,2,5] => 3
[3,1,4,5,2] => 3
[3,1,5,2,4] => 5
[3,1,5,4,2] => 4
[3,2,1,4,5] => 2
[3,2,1,5,4] => 3
[3,2,4,1,5] => 2
[3,2,4,5,1] => 2
[3,2,5,1,4] => 4
[3,2,5,4,1] => 3
[3,4,1,2,5] => 4
[3,4,1,5,2] => 4
[3,4,2,1,5] => 4
[3,4,2,5,1] => 4
[3,4,5,1,2] => 5
[3,4,5,2,1] => 5
[3,5,1,2,4] => 5
[3,5,1,4,2] => 4
[3,5,2,1,4] => 5
[3,5,2,4,1] => 4
[3,5,4,1,2] => 4
[3,5,4,2,1] => 4
[4,1,2,3,5] => 4
[4,1,2,5,3] => 4
[4,1,3,2,5] => 3
[4,1,3,5,2] => 3
[4,1,5,2,3] => 5
[4,1,5,3,2] => 5
[4,2,1,3,5] => 3
[4,2,1,5,3] => 3
[4,2,3,1,5] => 2
[4,2,3,5,1] => 2
[4,2,5,1,3] => 4
[4,2,5,3,1] => 4
[4,3,1,2,5] => 3
[4,3,1,5,2] => 3
[4,3,2,1,5] => 3
[4,3,2,5,1] => 3
[4,3,5,1,2] => 4
[4,3,5,2,1] => 4
[4,5,1,2,3] => 5
[4,5,1,3,2] => 5
[4,5,2,1,3] => 5
[4,5,2,3,1] => 5
[4,5,3,1,2] => 4
[4,5,3,2,1] => 4
[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] => 4
[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] => 3
[5,3,1,2,4] => 4
[5,3,1,4,2] => 3
[5,3,2,1,4] => 4
[5,3,2,4,1] => 3
[5,3,4,1,2] => 3
[5,3,4,2,1] => 3
[5,4,1,2,3] => 5
[5,4,1,3,2] => 5
[5,4,2,1,3] => 5
[5,4,2,3,1] => 5
[5,4,3,1,2] => 4
[5,4,3,2,1] => 4
[1,2,3,4,5,6] => 0
[1,2,3,4,6,5] => 1
[1,2,3,5,4,6] => 1
[1,2,3,5,6,4] => 1
[1,2,3,6,4,5] => 3
[1,2,3,6,5,4] => 2
[1,2,4,3,5,6] => 1
[1,2,4,3,6,5] => 2
[1,2,4,5,3,6] => 1
[1,2,4,5,6,3] => 1
[1,2,4,6,3,5] => 3
[1,2,4,6,5,3] => 2
[1,2,5,3,4,6] => 3
[1,2,5,3,6,4] => 3
[1,2,5,4,3,6] => 2
[1,2,5,4,6,3] => 2
[1,2,5,6,3,4] => 4
[1,2,5,6,4,3] => 4
[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] => 3
[1,3,2,4,5,6] => 1
[1,3,2,4,6,5] => 2
[1,3,2,5,4,6] => 2
[1,3,2,5,6,4] => 2
[1,3,2,6,4,5] => 4
[1,3,2,6,5,4] => 3
[1,3,4,2,5,6] => 1
[1,3,4,2,6,5] => 2
[1,3,4,5,2,6] => 1
[1,3,4,5,6,2] => 1
[1,3,4,6,2,5] => 3
[1,3,4,6,5,2] => 2
[1,3,5,2,4,6] => 3
[1,3,5,2,6,4] => 3
[1,3,5,4,2,6] => 2
[1,3,5,4,6,2] => 2
[1,3,5,6,2,4] => 4
[1,3,5,6,4,2] => 4
[1,3,6,2,4,5] => 4
[1,3,6,2,5,4] => 3
[1,3,6,4,2,5] => 3
[1,3,6,4,5,2] => 2
[1,3,6,5,2,4] => 3
[1,3,6,5,4,2] => 3
[1,4,2,3,5,6] => 3
[1,4,2,3,6,5] => 4
[1,4,2,5,3,6] => 3
[1,4,2,5,6,3] => 3
[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] => 3
[1,4,3,5,2,6] => 2
[1,4,3,5,6,2] => 2
[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] => 4
[1,4,5,3,2,6] => 4
[1,4,5,3,6,2] => 4
[1,4,5,6,2,3] => 5
[1,4,5,6,3,2] => 5
[1,4,6,2,3,5] => 5
[1,4,6,2,5,3] => 4
[1,4,6,3,2,5] => 5
[1,4,6,3,5,2] => 4
[1,4,6,5,2,3] => 4
[1,4,6,5,3,2] => 4
[1,5,2,3,4,6] => 4
[1,5,2,3,6,4] => 4
[1,5,2,4,3,6] => 3
[1,5,2,4,6,3] => 3
[1,5,2,6,3,4] => 5
[1,5,2,6,4,3] => 5
[1,5,3,2,4,6] => 3
[1,5,3,2,6,4] => 3
[1,5,3,4,2,6] => 2
[1,5,3,4,6,2] => 2
[1,5,3,6,2,4] => 4
[1,5,3,6,4,2] => 4
[1,5,4,2,3,6] => 3
[1,5,4,2,6,3] => 3
[1,5,4,3,2,6] => 3
[1,5,4,3,6,2] => 3
[1,5,4,6,2,3] => 4
[1,5,4,6,3,2] => 4
[1,5,6,2,3,4] => 5
[1,5,6,2,4,3] => 5
[1,5,6,3,2,4] => 5
[1,5,6,3,4,2] => 5
[1,5,6,4,2,3] => 4
[1,5,6,4,3,2] => 4
[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] => 4
[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] => 3
[1,6,4,2,3,5] => 4
[1,6,4,2,5,3] => 3
[1,6,4,3,2,5] => 4
[1,6,4,3,5,2] => 3
[1,6,4,5,2,3] => 3
[1,6,4,5,3,2] => 3
[1,6,5,2,3,4] => 5
[1,6,5,2,4,3] => 5
[1,6,5,3,2,4] => 5
[1,6,5,3,4,2] => 5
[1,6,5,4,2,3] => 4
[1,6,5,4,3,2] => 4
[2,1,3,4,5,6] => 1
[2,1,3,4,6,5] => 2
[2,1,3,5,4,6] => 2
[2,1,3,5,6,4] => 2
[2,1,3,6,4,5] => 4
[2,1,3,6,5,4] => 3
[2,1,4,3,5,6] => 2
[2,1,4,3,6,5] => 3
[2,1,4,5,3,6] => 2
[2,1,4,5,6,3] => 2
[2,1,4,6,3,5] => 4
[2,1,4,6,5,3] => 3
[2,1,5,3,4,6] => 4
[2,1,5,3,6,4] => 4
[2,1,5,4,3,6] => 3
[2,1,5,4,6,3] => 3
[2,1,5,6,3,4] => 5
[2,1,5,6,4,3] => 5
[2,1,6,3,4,5] => 5
[2,1,6,3,5,4] => 4
[2,1,6,4,3,5] => 4
[2,1,6,4,5,3] => 3
[2,1,6,5,3,4] => 4
[2,1,6,5,4,3] => 4
[2,3,1,4,5,6] => 1
[2,3,1,4,6,5] => 2
[2,3,1,5,4,6] => 2
[2,3,1,5,6,4] => 2
[2,3,1,6,4,5] => 4
[2,3,1,6,5,4] => 3
[2,3,4,1,5,6] => 1
[2,3,4,1,6,5] => 2
[2,3,4,5,1,6] => 1
[2,3,4,5,6,1] => 1
[2,3,4,6,1,5] => 3
[2,3,4,6,5,1] => 2
[2,3,5,1,4,6] => 3
[2,3,5,1,6,4] => 3
[2,3,5,4,1,6] => 2
[2,3,5,4,6,1] => 2
[2,3,5,6,1,4] => 4
[2,3,5,6,4,1] => 4
[2,3,6,1,4,5] => 4
[2,3,6,1,5,4] => 3
[2,3,6,4,1,5] => 3
[2,3,6,4,5,1] => 2
[2,3,6,5,1,4] => 3
[2,3,6,5,4,1] => 3
[2,4,1,3,5,6] => 3
[2,4,1,3,6,5] => 4
[2,4,1,5,3,6] => 3
[2,4,1,5,6,3] => 3
[2,4,1,6,3,5] => 5
[2,4,1,6,5,3] => 4
[2,4,3,1,5,6] => 2
[2,4,3,1,6,5] => 3
[2,4,3,5,1,6] => 2
[2,4,3,5,6,1] => 2
[2,4,3,6,1,5] => 4
[2,4,3,6,5,1] => 3
[2,4,5,1,3,6] => 4
[2,4,5,1,6,3] => 4
[2,4,5,3,1,6] => 4
[2,4,5,3,6,1] => 4
[2,4,5,6,1,3] => 5
[2,4,5,6,3,1] => 5
[2,4,6,1,3,5] => 5
[2,4,6,1,5,3] => 4
[2,4,6,3,1,5] => 5
[2,4,6,3,5,1] => 4
[2,4,6,5,1,3] => 4
[2,4,6,5,3,1] => 4
[2,5,1,3,4,6] => 4
[2,5,1,3,6,4] => 4
[2,5,1,4,3,6] => 3
[2,5,1,4,6,3] => 3
[2,5,1,6,3,4] => 5
[2,5,1,6,4,3] => 5
[2,5,3,1,4,6] => 3
[2,5,3,1,6,4] => 3
[2,5,3,4,1,6] => 2
[2,5,3,4,6,1] => 2
[2,5,3,6,1,4] => 4
[2,5,3,6,4,1] => 4
[2,5,4,1,3,6] => 3
[2,5,4,1,6,3] => 3
[2,5,4,3,1,6] => 3
[2,5,4,3,6,1] => 3
[2,5,4,6,1,3] => 4
[2,5,4,6,3,1] => 4
[2,5,6,1,3,4] => 5
[2,5,6,1,4,3] => 5
[2,5,6,3,1,4] => 5
[2,5,6,3,4,1] => 5
[2,5,6,4,1,3] => 4
[2,5,6,4,3,1] => 4
[2,6,1,3,4,5] => 5
[2,6,1,3,5,4] => 4
[2,6,1,4,3,5] => 4
[2,6,1,4,5,3] => 3
[2,6,1,5,3,4] => 4
[2,6,1,5,4,3] => 4
[2,6,3,1,4,5] => 4
[2,6,3,1,5,4] => 3
[2,6,3,4,1,5] => 3
[2,6,3,4,5,1] => 2
[2,6,3,5,1,4] => 3
[2,6,3,5,4,1] => 3
[2,6,4,1,3,5] => 4
[2,6,4,1,5,3] => 3
[2,6,4,3,1,5] => 4
[2,6,4,3,5,1] => 3
[2,6,4,5,1,3] => 3
[2,6,4,5,3,1] => 3
[2,6,5,1,3,4] => 5
[2,6,5,1,4,3] => 5
[2,6,5,3,1,4] => 5
[2,6,5,3,4,1] => 5
[2,6,5,4,1,3] => 4
[2,6,5,4,3,1] => 4
[3,1,2,4,5,6] => 3
[3,1,2,4,6,5] => 4
[3,1,2,5,4,6] => 4
[3,1,2,5,6,4] => 4
[3,1,2,6,4,5] => 6
[3,1,2,6,5,4] => 5
[3,1,4,2,5,6] => 3
[3,1,4,2,6,5] => 4
[3,1,4,5,2,6] => 3
[3,1,4,5,6,2] => 3
[3,1,4,6,2,5] => 5
[3,1,4,6,5,2] => 4
[3,1,5,2,4,6] => 5
[3,1,5,2,6,4] => 5
[3,1,5,4,2,6] => 4
[3,1,5,4,6,2] => 4
[3,1,5,6,2,4] => 6
[3,1,5,6,4,2] => 6
[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] => 5
[3,2,1,4,5,6] => 2
[3,2,1,4,6,5] => 3
[3,2,1,5,4,6] => 3
[3,2,1,5,6,4] => 3
[3,2,1,6,4,5] => 5
[3,2,1,6,5,4] => 4
[3,2,4,1,5,6] => 2
[3,2,4,1,6,5] => 3
[3,2,4,5,1,6] => 2
[3,2,4,5,6,1] => 2
[3,2,4,6,1,5] => 4
[3,2,4,6,5,1] => 3
[3,2,5,1,4,6] => 4
[3,2,5,1,6,4] => 4
[3,2,5,4,1,6] => 3
[3,2,5,4,6,1] => 3
[3,2,5,6,1,4] => 5
[3,2,5,6,4,1] => 5
[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] => 4
[3,4,1,2,5,6] => 4
[3,4,1,2,6,5] => 5
[3,4,1,5,2,6] => 4
[3,4,1,5,6,2] => 4
[3,4,1,6,2,5] => 6
[3,4,1,6,5,2] => 5
[3,4,2,1,5,6] => 4
[3,4,2,1,6,5] => 5
[3,4,2,5,1,6] => 4
[3,4,2,5,6,1] => 4
[3,4,2,6,1,5] => 6
[3,4,2,6,5,1] => 5
[3,4,5,1,2,6] => 5
[3,4,5,1,6,2] => 5
[3,4,5,2,1,6] => 5
[3,4,5,2,6,1] => 5
[3,4,5,6,1,2] => 6
[3,4,5,6,2,1] => 6
[3,4,6,1,2,5] => 6
[3,4,6,1,5,2] => 5
[3,4,6,2,1,5] => 6
[3,4,6,2,5,1] => 5
[3,4,6,5,1,2] => 5
[3,4,6,5,2,1] => 5
[3,5,1,2,4,6] => 5
[3,5,1,2,6,4] => 5
[3,5,1,4,2,6] => 4
[3,5,1,4,6,2] => 4
[3,5,1,6,2,4] => 6
[3,5,1,6,4,2] => 6
[3,5,2,1,4,6] => 5
[3,5,2,1,6,4] => 5
[3,5,2,4,1,6] => 4
[3,5,2,4,6,1] => 4
[3,5,2,6,1,4] => 6
[3,5,2,6,4,1] => 6
[3,5,4,1,2,6] => 4
[3,5,4,1,6,2] => 4
[3,5,4,2,1,6] => 4
[3,5,4,2,6,1] => 4
[3,5,4,6,1,2] => 5
[3,5,4,6,2,1] => 5
[3,5,6,1,2,4] => 6
[3,5,6,1,4,2] => 6
[3,5,6,2,1,4] => 6
[3,5,6,2,4,1] => 6
[3,5,6,4,1,2] => 5
[3,5,6,4,2,1] => 5
[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] => 5
[3,6,2,1,4,5] => 6
[3,6,2,1,5,4] => 5
[3,6,2,4,1,5] => 5
[3,6,2,4,5,1] => 4
[3,6,2,5,1,4] => 5
[3,6,2,5,4,1] => 5
[3,6,4,1,2,5] => 5
[3,6,4,1,5,2] => 4
[3,6,4,2,1,5] => 5
[3,6,4,2,5,1] => 4
[3,6,4,5,1,2] => 4
[3,6,4,5,2,1] => 4
[3,6,5,1,2,4] => 6
[3,6,5,1,4,2] => 6
[3,6,5,2,1,4] => 6
[3,6,5,2,4,1] => 6
[3,6,5,4,1,2] => 5
[3,6,5,4,2,1] => 5
[4,1,2,3,5,6] => 4
[4,1,2,3,6,5] => 5
[4,1,2,5,3,6] => 4
[4,1,2,5,6,3] => 4
[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] => 4
[4,1,3,5,2,6] => 3
[4,1,3,5,6,2] => 3
[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] => 5
[4,1,5,3,2,6] => 5
[4,1,5,3,6,2] => 5
[4,1,5,6,2,3] => 6
[4,1,5,6,3,2] => 6
[4,1,6,2,3,5] => 6
[4,1,6,2,5,3] => 5
[4,1,6,3,2,5] => 6
[4,1,6,3,5,2] => 5
[4,1,6,5,2,3] => 5
[4,1,6,5,3,2] => 5
[4,2,1,3,5,6] => 3
[4,2,1,3,6,5] => 4
[4,2,1,5,3,6] => 3
[4,2,1,5,6,3] => 3
[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] => 3
[4,2,3,5,1,6] => 2
[4,2,3,5,6,1] => 2
[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] => 4
[4,2,5,3,1,6] => 4
[4,2,5,3,6,1] => 4
[4,2,5,6,1,3] => 5
[4,2,5,6,3,1] => 5
[4,2,6,1,3,5] => 5
[4,2,6,1,5,3] => 4
[4,2,6,3,1,5] => 5
[4,2,6,3,5,1] => 4
[4,2,6,5,1,3] => 4
[4,2,6,5,3,1] => 4
[4,3,1,2,5,6] => 3
[4,3,1,2,6,5] => 4
[4,3,1,5,2,6] => 3
[4,3,1,5,6,2] => 3
[4,3,1,6,2,5] => 5
[4,3,1,6,5,2] => 4
[4,3,2,1,5,6] => 3
[4,3,2,1,6,5] => 4
[4,3,2,5,1,6] => 3
[4,3,2,5,6,1] => 3
[4,3,2,6,1,5] => 5
[4,3,2,6,5,1] => 4
[4,3,5,1,2,6] => 4
[4,3,5,1,6,2] => 4
[4,3,5,2,1,6] => 4
[4,3,5,2,6,1] => 4
[4,3,5,6,1,2] => 5
[4,3,5,6,2,1] => 5
[4,3,6,1,2,5] => 5
[4,3,6,1,5,2] => 4
[4,3,6,2,1,5] => 5
[4,3,6,2,5,1] => 4
[4,3,6,5,1,2] => 4
[4,3,6,5,2,1] => 4
[4,5,1,2,3,6] => 5
[4,5,1,2,6,3] => 5
[4,5,1,3,2,6] => 5
[4,5,1,3,6,2] => 5
[4,5,1,6,2,3] => 6
[4,5,1,6,3,2] => 6
[4,5,2,1,3,6] => 5
[4,5,2,1,6,3] => 5
[4,5,2,3,1,6] => 5
[4,5,2,3,6,1] => 5
[4,5,2,6,1,3] => 6
[4,5,2,6,3,1] => 6
[4,5,3,1,2,6] => 4
[4,5,3,1,6,2] => 4
[4,5,3,2,1,6] => 4
[4,5,3,2,6,1] => 4
[4,5,3,6,1,2] => 5
[4,5,3,6,2,1] => 5
[4,5,6,1,2,3] => 6
[4,5,6,1,3,2] => 6
[4,5,6,2,1,3] => 6
[4,5,6,2,3,1] => 6
[4,5,6,3,1,2] => 6
[4,5,6,3,2,1] => 6
[4,6,1,2,3,5] => 6
[4,6,1,2,5,3] => 5
[4,6,1,3,2,5] => 6
[4,6,1,3,5,2] => 5
[4,6,1,5,2,3] => 5
[4,6,1,5,3,2] => 5
[4,6,2,1,3,5] => 6
[4,6,2,1,5,3] => 5
[4,6,2,3,1,5] => 6
[4,6,2,3,5,1] => 5
[4,6,2,5,1,3] => 5
[4,6,2,5,3,1] => 5
[4,6,3,1,2,5] => 5
[4,6,3,1,5,2] => 4
[4,6,3,2,1,5] => 5
[4,6,3,2,5,1] => 4
[4,6,3,5,1,2] => 4
[4,6,3,5,2,1] => 4
[4,6,5,1,2,3] => 6
[4,6,5,1,3,2] => 6
[4,6,5,2,1,3] => 6
[4,6,5,2,3,1] => 6
[4,6,5,3,1,2] => 6
[4,6,5,3,2,1] => 6
[5,1,2,3,4,6] => 5
[5,1,2,3,6,4] => 5
[5,1,2,4,3,6] => 4
[5,1,2,4,6,3] => 4
[5,1,2,6,3,4] => 6
[5,1,2,6,4,3] => 6
[5,1,3,2,4,6] => 4
[5,1,3,2,6,4] => 4
[5,1,3,4,2,6] => 3
[5,1,3,4,6,2] => 3
[5,1,3,6,2,4] => 5
[5,1,3,6,4,2] => 5
[5,1,4,2,3,6] => 4
[5,1,4,2,6,3] => 4
[5,1,4,3,2,6] => 4
[5,1,4,3,6,2] => 4
[5,1,4,6,2,3] => 5
[5,1,4,6,3,2] => 5
[5,1,6,2,3,4] => 6
[5,1,6,2,4,3] => 6
[5,1,6,3,2,4] => 6
[5,1,6,3,4,2] => 6
[5,1,6,4,2,3] => 5
[5,1,6,4,3,2] => 5
[5,2,1,3,4,6] => 4
[5,2,1,3,6,4] => 4
[5,2,1,4,3,6] => 3
[5,2,1,4,6,3] => 3
[5,2,1,6,3,4] => 5
[5,2,1,6,4,3] => 5
[5,2,3,1,4,6] => 3
[5,2,3,1,6,4] => 3
[5,2,3,4,1,6] => 2
[5,2,3,4,6,1] => 2
[5,2,3,6,1,4] => 4
[5,2,3,6,4,1] => 4
[5,2,4,1,3,6] => 3
[5,2,4,1,6,3] => 3
[5,2,4,3,1,6] => 3
[5,2,4,3,6,1] => 3
[5,2,4,6,1,3] => 4
[5,2,4,6,3,1] => 4
[5,2,6,1,3,4] => 5
[5,2,6,1,4,3] => 5
[5,2,6,3,1,4] => 5
[5,2,6,3,4,1] => 5
[5,2,6,4,1,3] => 4
[5,2,6,4,3,1] => 4
[5,3,1,2,4,6] => 4
[5,3,1,2,6,4] => 4
[5,3,1,4,2,6] => 3
[5,3,1,4,6,2] => 3
[5,3,1,6,2,4] => 5
[5,3,1,6,4,2] => 5
[5,3,2,1,4,6] => 4
[5,3,2,1,6,4] => 4
[5,3,2,4,1,6] => 3
[5,3,2,4,6,1] => 3
[5,3,2,6,1,4] => 5
[5,3,2,6,4,1] => 5
[5,3,4,1,2,6] => 3
[5,3,4,1,6,2] => 3
[5,3,4,2,1,6] => 3
[5,3,4,2,6,1] => 3
[5,3,4,6,1,2] => 4
[5,3,4,6,2,1] => 4
[5,3,6,1,2,4] => 5
[5,3,6,1,4,2] => 5
[5,3,6,2,1,4] => 5
[5,3,6,2,4,1] => 5
[5,3,6,4,1,2] => 4
[5,3,6,4,2,1] => 4
[5,4,1,2,3,6] => 5
[5,4,1,2,6,3] => 5
[5,4,1,3,2,6] => 5
[5,4,1,3,6,2] => 5
[5,4,1,6,2,3] => 6
[5,4,1,6,3,2] => 6
[5,4,2,1,3,6] => 5
[5,4,2,1,6,3] => 5
[5,4,2,3,1,6] => 5
[5,4,2,3,6,1] => 5
[5,4,2,6,1,3] => 6
[5,4,2,6,3,1] => 6
[5,4,3,1,2,6] => 4
[5,4,3,1,6,2] => 4
[5,4,3,2,1,6] => 4
[5,4,3,2,6,1] => 4
[5,4,3,6,1,2] => 5
[5,4,3,6,2,1] => 5
[5,4,6,1,2,3] => 6
[5,4,6,1,3,2] => 6
[5,4,6,2,1,3] => 6
[5,4,6,2,3,1] => 6
[5,4,6,3,1,2] => 6
[5,4,6,3,2,1] => 6
[5,6,1,2,3,4] => 6
[5,6,1,2,4,3] => 6
[5,6,1,3,2,4] => 6
[5,6,1,3,4,2] => 6
[5,6,1,4,2,3] => 5
[5,6,1,4,3,2] => 5
[5,6,2,1,3,4] => 6
[5,6,2,1,4,3] => 6
[5,6,2,3,1,4] => 6
[5,6,2,3,4,1] => 6
[5,6,2,4,1,3] => 5
[5,6,2,4,3,1] => 5
[5,6,3,1,2,4] => 5
[5,6,3,1,4,2] => 5
[5,6,3,2,1,4] => 5
[5,6,3,2,4,1] => 5
[5,6,3,4,1,2] => 4
[5,6,3,4,2,1] => 4
[5,6,4,1,2,3] => 5
[5,6,4,1,3,2] => 5
[5,6,4,2,1,3] => 5
[5,6,4,2,3,1] => 5
[5,6,4,3,1,2] => 5
[5,6,4,3,2,1] => 5
[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] => 5
[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] => 4
[6,1,4,2,3,5] => 5
[6,1,4,2,5,3] => 4
[6,1,4,3,2,5] => 5
[6,1,4,3,5,2] => 4
[6,1,4,5,2,3] => 4
[6,1,4,5,3,2] => 4
[6,1,5,2,3,4] => 6
[6,1,5,2,4,3] => 6
[6,1,5,3,2,4] => 6
[6,1,5,3,4,2] => 6
[6,1,5,4,2,3] => 5
[6,1,5,4,3,2] => 5
[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] => 4
[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] => 3
[6,2,4,1,3,5] => 4
[6,2,4,1,5,3] => 3
[6,2,4,3,1,5] => 4
[6,2,4,3,5,1] => 3
[6,2,4,5,1,3] => 3
[6,2,4,5,3,1] => 3
[6,2,5,1,3,4] => 5
[6,2,5,1,4,3] => 5
[6,2,5,3,1,4] => 5
[6,2,5,3,4,1] => 5
[6,2,5,4,1,3] => 4
[6,2,5,4,3,1] => 4
[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] => 4
[6,3,2,1,4,5] => 5
[6,3,2,1,5,4] => 4
[6,3,2,4,1,5] => 4
[6,3,2,4,5,1] => 3
[6,3,2,5,1,4] => 4
[6,3,2,5,4,1] => 4
[6,3,4,1,2,5] => 4
[6,3,4,1,5,2] => 3
[6,3,4,2,1,5] => 4
[6,3,4,2,5,1] => 3
[6,3,4,5,1,2] => 3
[6,3,4,5,2,1] => 3
[6,3,5,1,2,4] => 5
[6,3,5,1,4,2] => 5
[6,3,5,2,1,4] => 5
[6,3,5,2,4,1] => 5
[6,3,5,4,1,2] => 4
[6,3,5,4,2,1] => 4
[6,4,1,2,3,5] => 6
[6,4,1,2,5,3] => 5
[6,4,1,3,2,5] => 6
[6,4,1,3,5,2] => 5
[6,4,1,5,2,3] => 5
[6,4,1,5,3,2] => 5
[6,4,2,1,3,5] => 6
[6,4,2,1,5,3] => 5
[6,4,2,3,1,5] => 6
[6,4,2,3,5,1] => 5
[6,4,2,5,1,3] => 5
[6,4,2,5,3,1] => 5
[6,4,3,1,2,5] => 5
[6,4,3,1,5,2] => 4
[6,4,3,2,1,5] => 5
[6,4,3,2,5,1] => 4
[6,4,3,5,1,2] => 4
[6,4,3,5,2,1] => 4
[6,4,5,1,2,3] => 6
[6,4,5,1,3,2] => 6
[6,4,5,2,1,3] => 6
[6,4,5,2,3,1] => 6
[6,4,5,3,1,2] => 6
[6,4,5,3,2,1] => 6
[6,5,1,2,3,4] => 6
[6,5,1,2,4,3] => 6
[6,5,1,3,2,4] => 6
[6,5,1,3,4,2] => 6
[6,5,1,4,2,3] => 5
[6,5,1,4,3,2] => 5
[6,5,2,1,3,4] => 6
[6,5,2,1,4,3] => 6
[6,5,2,3,1,4] => 6
[6,5,2,3,4,1] => 6
[6,5,2,4,1,3] => 5
[6,5,2,4,3,1] => 5
[6,5,3,1,2,4] => 5
[6,5,3,1,4,2] => 5
[6,5,3,2,1,4] => 5
[6,5,3,2,4,1] => 5
[6,5,3,4,1,2] => 4
[6,5,3,4,2,1] => 4
[6,5,4,1,2,3] => 5
[6,5,4,1,3,2] => 5
[6,5,4,2,1,3] => 5
[6,5,4,2,3,1] => 5
[6,5,4,3,1,2] => 5
[6,5,4,3,2,1] => 5
click to show generating function       
Description
The number of indices $i$ such that $\pi_i \notin \{i,i+1\}$.
References
[1] Li, Y. Ménage Numbers and Ménage Permutations arXiv:1502.06068
Code
def statistic(pi):
    return sum( 1 for i in range(len(pi)) if pi[i] not in [i+1,i+2]  )
Created
Feb 24, 2015 at 13:12 by Christian Stump
Updated
May 29, 2015 at 17:21 by Martin Rubey