Identifier
-
Mp00090:
Permutations
—cycle-as-one-line notation⟶
Permutations
Mp00175: Permutations —inverse Foata bijection⟶ Permutations
Mp00149: Permutations —Lehmer code rotation⟶ Permutations
St001520: Permutations ⟶ ℤ
Values
[1,2] => [1,2] => [1,2] => [2,1] => 0
[2,1] => [1,2] => [1,2] => [2,1] => 0
[1,2,3] => [1,2,3] => [1,2,3] => [2,3,1] => 0
[1,3,2] => [1,2,3] => [1,2,3] => [2,3,1] => 0
[2,1,3] => [1,2,3] => [1,2,3] => [2,3,1] => 0
[2,3,1] => [1,2,3] => [1,2,3] => [2,3,1] => 0
[3,1,2] => [1,3,2] => [3,1,2] => [1,3,2] => 0
[3,2,1] => [1,3,2] => [3,1,2] => [1,3,2] => 0
[1,2,3,4] => [1,2,3,4] => [1,2,3,4] => [2,3,4,1] => 1
[1,2,4,3] => [1,2,3,4] => [1,2,3,4] => [2,3,4,1] => 1
[1,3,2,4] => [1,2,3,4] => [1,2,3,4] => [2,3,4,1] => 1
[1,3,4,2] => [1,2,3,4] => [1,2,3,4] => [2,3,4,1] => 1
[1,4,2,3] => [1,2,4,3] => [4,1,2,3] => [1,3,4,2] => 0
[1,4,3,2] => [1,2,4,3] => [4,1,2,3] => [1,3,4,2] => 0
[2,1,3,4] => [1,2,3,4] => [1,2,3,4] => [2,3,4,1] => 1
[2,1,4,3] => [1,2,3,4] => [1,2,3,4] => [2,3,4,1] => 1
[2,3,1,4] => [1,2,3,4] => [1,2,3,4] => [2,3,4,1] => 1
[2,3,4,1] => [1,2,3,4] => [1,2,3,4] => [2,3,4,1] => 1
[2,4,1,3] => [1,2,4,3] => [4,1,2,3] => [1,3,4,2] => 0
[2,4,3,1] => [1,2,4,3] => [4,1,2,3] => [1,3,4,2] => 0
[3,1,2,4] => [1,3,2,4] => [3,1,2,4] => [4,2,3,1] => 1
[3,1,4,2] => [1,3,4,2] => [3,4,1,2] => [4,1,3,2] => 1
[3,2,1,4] => [1,3,2,4] => [3,1,2,4] => [4,2,3,1] => 1
[3,2,4,1] => [1,3,4,2] => [3,4,1,2] => [4,1,3,2] => 1
[3,4,1,2] => [1,3,2,4] => [3,1,2,4] => [4,2,3,1] => 1
[3,4,2,1] => [1,3,2,4] => [3,1,2,4] => [4,2,3,1] => 1
[4,1,2,3] => [1,4,3,2] => [4,3,1,2] => [1,2,4,3] => 0
[4,1,3,2] => [1,4,2,3] => [1,4,2,3] => [2,1,4,3] => 0
[4,2,1,3] => [1,4,3,2] => [4,3,1,2] => [1,2,4,3] => 0
[4,2,3,1] => [1,4,2,3] => [1,4,2,3] => [2,1,4,3] => 0
[4,3,1,2] => [1,4,2,3] => [1,4,2,3] => [2,1,4,3] => 0
[4,3,2,1] => [1,4,2,3] => [1,4,2,3] => [2,1,4,3] => 0
[1,2,3,4,5] => [1,2,3,4,5] => [1,2,3,4,5] => [2,3,4,5,1] => 1
[1,2,3,5,4] => [1,2,3,4,5] => [1,2,3,4,5] => [2,3,4,5,1] => 1
[1,2,4,3,5] => [1,2,3,4,5] => [1,2,3,4,5] => [2,3,4,5,1] => 1
[1,2,4,5,3] => [1,2,3,4,5] => [1,2,3,4,5] => [2,3,4,5,1] => 1
[1,2,5,3,4] => [1,2,3,5,4] => [5,1,2,3,4] => [1,3,4,5,2] => 1
[1,2,5,4,3] => [1,2,3,5,4] => [5,1,2,3,4] => [1,3,4,5,2] => 1
[1,3,2,4,5] => [1,2,3,4,5] => [1,2,3,4,5] => [2,3,4,5,1] => 1
[1,3,2,5,4] => [1,2,3,4,5] => [1,2,3,4,5] => [2,3,4,5,1] => 1
[1,3,4,2,5] => [1,2,3,4,5] => [1,2,3,4,5] => [2,3,4,5,1] => 1
[1,3,4,5,2] => [1,2,3,4,5] => [1,2,3,4,5] => [2,3,4,5,1] => 1
[1,3,5,2,4] => [1,2,3,5,4] => [5,1,2,3,4] => [1,3,4,5,2] => 1
[1,3,5,4,2] => [1,2,3,5,4] => [5,1,2,3,4] => [1,3,4,5,2] => 1
[1,4,2,3,5] => [1,2,4,3,5] => [4,1,2,3,5] => [5,2,3,4,1] => 2
[1,4,2,5,3] => [1,2,4,5,3] => [4,5,1,2,3] => [5,1,3,4,2] => 1
[1,4,3,2,5] => [1,2,4,3,5] => [4,1,2,3,5] => [5,2,3,4,1] => 2
[1,4,3,5,2] => [1,2,4,5,3] => [4,5,1,2,3] => [5,1,3,4,2] => 1
[1,4,5,2,3] => [1,2,4,3,5] => [4,1,2,3,5] => [5,2,3,4,1] => 2
[1,4,5,3,2] => [1,2,4,3,5] => [4,1,2,3,5] => [5,2,3,4,1] => 2
[1,5,2,3,4] => [1,2,5,4,3] => [5,4,1,2,3] => [1,2,4,5,3] => 0
[1,5,2,4,3] => [1,2,5,3,4] => [1,5,2,3,4] => [2,1,4,5,3] => 0
[1,5,3,2,4] => [1,2,5,4,3] => [5,4,1,2,3] => [1,2,4,5,3] => 0
[1,5,3,4,2] => [1,2,5,3,4] => [1,5,2,3,4] => [2,1,4,5,3] => 0
[1,5,4,2,3] => [1,2,5,3,4] => [1,5,2,3,4] => [2,1,4,5,3] => 0
[1,5,4,3,2] => [1,2,5,3,4] => [1,5,2,3,4] => [2,1,4,5,3] => 0
[2,1,3,4,5] => [1,2,3,4,5] => [1,2,3,4,5] => [2,3,4,5,1] => 1
[2,1,3,5,4] => [1,2,3,4,5] => [1,2,3,4,5] => [2,3,4,5,1] => 1
[2,1,4,3,5] => [1,2,3,4,5] => [1,2,3,4,5] => [2,3,4,5,1] => 1
[2,1,4,5,3] => [1,2,3,4,5] => [1,2,3,4,5] => [2,3,4,5,1] => 1
[2,1,5,3,4] => [1,2,3,5,4] => [5,1,2,3,4] => [1,3,4,5,2] => 1
[2,1,5,4,3] => [1,2,3,5,4] => [5,1,2,3,4] => [1,3,4,5,2] => 1
[2,3,1,4,5] => [1,2,3,4,5] => [1,2,3,4,5] => [2,3,4,5,1] => 1
[2,3,1,5,4] => [1,2,3,4,5] => [1,2,3,4,5] => [2,3,4,5,1] => 1
[2,3,4,1,5] => [1,2,3,4,5] => [1,2,3,4,5] => [2,3,4,5,1] => 1
[2,3,4,5,1] => [1,2,3,4,5] => [1,2,3,4,5] => [2,3,4,5,1] => 1
[2,3,5,1,4] => [1,2,3,5,4] => [5,1,2,3,4] => [1,3,4,5,2] => 1
[2,3,5,4,1] => [1,2,3,5,4] => [5,1,2,3,4] => [1,3,4,5,2] => 1
[2,4,1,3,5] => [1,2,4,3,5] => [4,1,2,3,5] => [5,2,3,4,1] => 2
[2,4,1,5,3] => [1,2,4,5,3] => [4,5,1,2,3] => [5,1,3,4,2] => 1
[2,4,3,1,5] => [1,2,4,3,5] => [4,1,2,3,5] => [5,2,3,4,1] => 2
[2,4,3,5,1] => [1,2,4,5,3] => [4,5,1,2,3] => [5,1,3,4,2] => 1
[2,4,5,1,3] => [1,2,4,3,5] => [4,1,2,3,5] => [5,2,3,4,1] => 2
[2,4,5,3,1] => [1,2,4,3,5] => [4,1,2,3,5] => [5,2,3,4,1] => 2
[2,5,1,3,4] => [1,2,5,4,3] => [5,4,1,2,3] => [1,2,4,5,3] => 0
[2,5,1,4,3] => [1,2,5,3,4] => [1,5,2,3,4] => [2,1,4,5,3] => 0
[2,5,3,1,4] => [1,2,5,4,3] => [5,4,1,2,3] => [1,2,4,5,3] => 0
[2,5,3,4,1] => [1,2,5,3,4] => [1,5,2,3,4] => [2,1,4,5,3] => 0
[2,5,4,1,3] => [1,2,5,3,4] => [1,5,2,3,4] => [2,1,4,5,3] => 0
[2,5,4,3,1] => [1,2,5,3,4] => [1,5,2,3,4] => [2,1,4,5,3] => 0
[3,1,2,4,5] => [1,3,2,4,5] => [3,1,2,4,5] => [4,2,3,5,1] => 1
[3,1,2,5,4] => [1,3,2,4,5] => [3,1,2,4,5] => [4,2,3,5,1] => 1
[3,1,4,2,5] => [1,3,4,2,5] => [3,4,1,2,5] => [4,5,2,3,1] => 2
[3,1,4,5,2] => [1,3,4,5,2] => [3,4,5,1,2] => [4,5,1,3,2] => 2
[3,1,5,2,4] => [1,3,5,4,2] => [5,3,4,1,2] => [1,5,2,4,3] => 1
[3,1,5,4,2] => [1,3,5,2,4] => [5,3,1,2,4] => [1,5,3,4,2] => 1
[3,2,1,4,5] => [1,3,2,4,5] => [3,1,2,4,5] => [4,2,3,5,1] => 1
[3,2,1,5,4] => [1,3,2,4,5] => [3,1,2,4,5] => [4,2,3,5,1] => 1
[3,2,4,1,5] => [1,3,4,2,5] => [3,4,1,2,5] => [4,5,2,3,1] => 2
[3,2,4,5,1] => [1,3,4,5,2] => [3,4,5,1,2] => [4,5,1,3,2] => 2
[3,2,5,1,4] => [1,3,5,4,2] => [5,3,4,1,2] => [1,5,2,4,3] => 1
[3,2,5,4,1] => [1,3,5,2,4] => [5,3,1,2,4] => [1,5,3,4,2] => 1
[3,4,1,2,5] => [1,3,2,4,5] => [3,1,2,4,5] => [4,2,3,5,1] => 1
[3,4,1,5,2] => [1,3,2,4,5] => [3,1,2,4,5] => [4,2,3,5,1] => 1
[3,4,2,1,5] => [1,3,2,4,5] => [3,1,2,4,5] => [4,2,3,5,1] => 1
[3,4,2,5,1] => [1,3,2,4,5] => [3,1,2,4,5] => [4,2,3,5,1] => 1
[3,4,5,1,2] => [1,3,5,2,4] => [5,3,1,2,4] => [1,5,3,4,2] => 1
[3,4,5,2,1] => [1,3,5,2,4] => [5,3,1,2,4] => [1,5,3,4,2] => 1
[3,5,1,2,4] => [1,3,2,5,4] => [3,5,1,2,4] => [4,1,3,5,2] => 0
[3,5,1,4,2] => [1,3,2,5,4] => [3,5,1,2,4] => [4,1,3,5,2] => 0
[3,5,2,1,4] => [1,3,2,5,4] => [3,5,1,2,4] => [4,1,3,5,2] => 0
>>> Load all 152 entries. <<<
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Description
The number of strict 3-descents.
A strict 3-descent of a permutation $\pi$ of $\{1,2, \dots ,n \}$ is a pair $(i,i+3)$ with $ i+3 \leq n$ and $\pi(i) > \pi(i+3)$.
A strict 3-descent of a permutation $\pi$ of $\{1,2, \dots ,n \}$ is a pair $(i,i+3)$ with $ i+3 \leq n$ and $\pi(i) > \pi(i+3)$.
Map
inverse Foata bijection
Description
The inverse of Foata's bijection.
See Mp00067Foata bijection.
See Mp00067Foata bijection.
Map
cycle-as-one-line notation
Description
Return the permutation obtained by concatenating the cycles of a permutation, each written with minimal element first, sorted by minimal element.
Map
Lehmer code rotation
Description
Sends a permutation $\pi$ to the unique permutation $\tau$ (of the same length) such that every entry in the Lehmer code of $\tau$ is cyclically one larger than the Lehmer code of $\pi$.
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