Identifier
-
Mp00119:
Dyck paths
—to 321-avoiding permutation (Krattenthaler)⟶
Permutations
Mp00160: Permutations —graph of inversions⟶ Graphs
St000315: Graphs ⟶ ℤ
Values
[1,0] => [1] => ([],1) => 1
[1,0,1,0] => [1,2] => ([],2) => 2
[1,1,0,0] => [2,1] => ([(0,1)],2) => 0
[1,0,1,0,1,0] => [1,2,3] => ([],3) => 3
[1,0,1,1,0,0] => [1,3,2] => ([(1,2)],3) => 1
[1,1,0,0,1,0] => [2,1,3] => ([(1,2)],3) => 1
[1,1,0,1,0,0] => [2,3,1] => ([(0,2),(1,2)],3) => 0
[1,1,1,0,0,0] => [3,1,2] => ([(0,2),(1,2)],3) => 0
[1,0,1,0,1,0,1,0] => [1,2,3,4] => ([],4) => 4
[1,0,1,0,1,1,0,0] => [1,2,4,3] => ([(2,3)],4) => 2
[1,0,1,1,0,0,1,0] => [1,3,2,4] => ([(2,3)],4) => 2
[1,0,1,1,0,1,0,0] => [1,3,4,2] => ([(1,3),(2,3)],4) => 1
[1,0,1,1,1,0,0,0] => [1,4,2,3] => ([(1,3),(2,3)],4) => 1
[1,1,0,0,1,0,1,0] => [2,1,3,4] => ([(2,3)],4) => 2
[1,1,0,0,1,1,0,0] => [2,1,4,3] => ([(0,3),(1,2)],4) => 0
[1,1,0,1,0,0,1,0] => [2,3,1,4] => ([(1,3),(2,3)],4) => 1
[1,1,0,1,0,1,0,0] => [2,3,4,1] => ([(0,3),(1,3),(2,3)],4) => 0
[1,1,0,1,1,0,0,0] => [2,4,1,3] => ([(0,3),(1,2),(2,3)],4) => 0
[1,1,1,0,0,0,1,0] => [3,1,2,4] => ([(1,3),(2,3)],4) => 1
[1,1,1,0,0,1,0,0] => [3,1,4,2] => ([(0,3),(1,2),(2,3)],4) => 0
[1,1,1,0,1,0,0,0] => [3,4,1,2] => ([(0,2),(0,3),(1,2),(1,3)],4) => 0
[1,1,1,1,0,0,0,0] => [4,1,2,3] => ([(0,3),(1,3),(2,3)],4) => 0
[1,0,1,0,1,0,1,0,1,0] => [1,2,3,4,5] => ([],5) => 5
[1,0,1,0,1,0,1,1,0,0] => [1,2,3,5,4] => ([(3,4)],5) => 3
[1,0,1,0,1,1,0,0,1,0] => [1,2,4,3,5] => ([(3,4)],5) => 3
[1,0,1,0,1,1,0,1,0,0] => [1,2,4,5,3] => ([(2,4),(3,4)],5) => 2
[1,0,1,0,1,1,1,0,0,0] => [1,2,5,3,4] => ([(2,4),(3,4)],5) => 2
[1,0,1,1,0,0,1,0,1,0] => [1,3,2,4,5] => ([(3,4)],5) => 3
[1,0,1,1,0,0,1,1,0,0] => [1,3,2,5,4] => ([(1,4),(2,3)],5) => 1
[1,0,1,1,0,1,0,0,1,0] => [1,3,4,2,5] => ([(2,4),(3,4)],5) => 2
[1,0,1,1,0,1,0,1,0,0] => [1,3,4,5,2] => ([(1,4),(2,4),(3,4)],5) => 1
[1,0,1,1,0,1,1,0,0,0] => [1,3,5,2,4] => ([(1,4),(2,3),(3,4)],5) => 1
[1,0,1,1,1,0,0,0,1,0] => [1,4,2,3,5] => ([(2,4),(3,4)],5) => 2
[1,0,1,1,1,0,0,1,0,0] => [1,4,2,5,3] => ([(1,4),(2,3),(3,4)],5) => 1
[1,0,1,1,1,0,1,0,0,0] => [1,4,5,2,3] => ([(1,3),(1,4),(2,3),(2,4)],5) => 1
[1,0,1,1,1,1,0,0,0,0] => [1,5,2,3,4] => ([(1,4),(2,4),(3,4)],5) => 1
[1,1,0,0,1,0,1,0,1,0] => [2,1,3,4,5] => ([(3,4)],5) => 3
[1,1,0,0,1,0,1,1,0,0] => [2,1,3,5,4] => ([(1,4),(2,3)],5) => 1
[1,1,0,0,1,1,0,0,1,0] => [2,1,4,3,5] => ([(1,4),(2,3)],5) => 1
[1,1,0,0,1,1,0,1,0,0] => [2,1,4,5,3] => ([(0,1),(2,4),(3,4)],5) => 0
[1,1,0,0,1,1,1,0,0,0] => [2,1,5,3,4] => ([(0,1),(2,4),(3,4)],5) => 0
[1,1,0,1,0,0,1,0,1,0] => [2,3,1,4,5] => ([(2,4),(3,4)],5) => 2
[1,1,0,1,0,0,1,1,0,0] => [2,3,1,5,4] => ([(0,1),(2,4),(3,4)],5) => 0
[1,1,0,1,0,1,0,0,1,0] => [2,3,4,1,5] => ([(1,4),(2,4),(3,4)],5) => 1
[1,1,0,1,0,1,0,1,0,0] => [2,3,4,5,1] => ([(0,4),(1,4),(2,4),(3,4)],5) => 0
[1,1,0,1,0,1,1,0,0,0] => [2,3,5,1,4] => ([(0,4),(1,4),(2,3),(3,4)],5) => 0
[1,1,0,1,1,0,0,0,1,0] => [2,4,1,3,5] => ([(1,4),(2,3),(3,4)],5) => 1
[1,1,0,1,1,0,0,1,0,0] => [2,4,1,5,3] => ([(0,4),(1,3),(2,3),(2,4)],5) => 0
[1,1,0,1,1,0,1,0,0,0] => [2,4,5,1,3] => ([(0,4),(1,2),(1,3),(2,4),(3,4)],5) => 0
[1,1,0,1,1,1,0,0,0,0] => [2,5,1,3,4] => ([(0,4),(1,4),(2,3),(3,4)],5) => 0
[1,1,1,0,0,0,1,0,1,0] => [3,1,2,4,5] => ([(2,4),(3,4)],5) => 2
[1,1,1,0,0,0,1,1,0,0] => [3,1,2,5,4] => ([(0,1),(2,4),(3,4)],5) => 0
[1,1,1,0,0,1,0,0,1,0] => [3,1,4,2,5] => ([(1,4),(2,3),(3,4)],5) => 1
[1,1,1,0,0,1,0,1,0,0] => [3,1,4,5,2] => ([(0,4),(1,4),(2,3),(3,4)],5) => 0
[1,1,1,0,0,1,1,0,0,0] => [3,1,5,2,4] => ([(0,4),(1,3),(2,3),(2,4)],5) => 0
[1,1,1,0,1,0,0,0,1,0] => [3,4,1,2,5] => ([(1,3),(1,4),(2,3),(2,4)],5) => 1
[1,1,1,0,1,0,0,1,0,0] => [3,4,1,5,2] => ([(0,4),(1,2),(1,3),(2,4),(3,4)],5) => 0
[1,1,1,0,1,0,1,0,0,0] => [3,4,5,1,2] => ([(0,3),(0,4),(1,3),(1,4),(2,3),(2,4)],5) => 0
[1,1,1,0,1,1,0,0,0,0] => [3,5,1,2,4] => ([(0,4),(1,2),(1,3),(2,4),(3,4)],5) => 0
[1,1,1,1,0,0,0,0,1,0] => [4,1,2,3,5] => ([(1,4),(2,4),(3,4)],5) => 1
[1,1,1,1,0,0,0,1,0,0] => [4,1,2,5,3] => ([(0,4),(1,4),(2,3),(3,4)],5) => 0
[1,1,1,1,0,0,1,0,0,0] => [4,1,5,2,3] => ([(0,4),(1,2),(1,3),(2,4),(3,4)],5) => 0
[1,1,1,1,0,1,0,0,0,0] => [4,5,1,2,3] => ([(0,3),(0,4),(1,3),(1,4),(2,3),(2,4)],5) => 0
[1,1,1,1,1,0,0,0,0,0] => [5,1,2,3,4] => ([(0,4),(1,4),(2,4),(3,4)],5) => 0
[1,0,1,0,1,0,1,0,1,0,1,0] => [1,2,3,4,5,6] => ([],6) => 6
[1,0,1,0,1,0,1,0,1,1,0,0] => [1,2,3,4,6,5] => ([(4,5)],6) => 4
[1,0,1,0,1,0,1,1,0,0,1,0] => [1,2,3,5,4,6] => ([(4,5)],6) => 4
[1,0,1,0,1,0,1,1,0,1,0,0] => [1,2,3,5,6,4] => ([(3,5),(4,5)],6) => 3
[1,0,1,0,1,0,1,1,1,0,0,0] => [1,2,3,6,4,5] => ([(3,5),(4,5)],6) => 3
[1,0,1,0,1,1,0,0,1,0,1,0] => [1,2,4,3,5,6] => ([(4,5)],6) => 4
[1,0,1,0,1,1,0,0,1,1,0,0] => [1,2,4,3,6,5] => ([(2,5),(3,4)],6) => 2
[1,0,1,0,1,1,0,1,0,0,1,0] => [1,2,4,5,3,6] => ([(3,5),(4,5)],6) => 3
[1,0,1,0,1,1,0,1,0,1,0,0] => [1,2,4,5,6,3] => ([(2,5),(3,5),(4,5)],6) => 2
[1,0,1,0,1,1,0,1,1,0,0,0] => [1,2,4,6,3,5] => ([(2,5),(3,4),(4,5)],6) => 2
[1,0,1,0,1,1,1,0,0,0,1,0] => [1,2,5,3,4,6] => ([(3,5),(4,5)],6) => 3
[1,0,1,0,1,1,1,0,0,1,0,0] => [1,2,5,3,6,4] => ([(2,5),(3,4),(4,5)],6) => 2
[1,0,1,0,1,1,1,0,1,0,0,0] => [1,2,5,6,3,4] => ([(2,4),(2,5),(3,4),(3,5)],6) => 2
[1,0,1,0,1,1,1,1,0,0,0,0] => [1,2,6,3,4,5] => ([(2,5),(3,5),(4,5)],6) => 2
[1,0,1,1,0,0,1,0,1,0,1,0] => [1,3,2,4,5,6] => ([(4,5)],6) => 4
[1,0,1,1,0,0,1,0,1,1,0,0] => [1,3,2,4,6,5] => ([(2,5),(3,4)],6) => 2
[1,0,1,1,0,0,1,1,0,0,1,0] => [1,3,2,5,4,6] => ([(2,5),(3,4)],6) => 2
[1,0,1,1,0,0,1,1,0,1,0,0] => [1,3,2,5,6,4] => ([(1,2),(3,5),(4,5)],6) => 1
[1,0,1,1,0,0,1,1,1,0,0,0] => [1,3,2,6,4,5] => ([(1,2),(3,5),(4,5)],6) => 1
[1,0,1,1,0,1,0,0,1,0,1,0] => [1,3,4,2,5,6] => ([(3,5),(4,5)],6) => 3
[1,0,1,1,0,1,0,0,1,1,0,0] => [1,3,4,2,6,5] => ([(1,2),(3,5),(4,5)],6) => 1
[1,0,1,1,0,1,0,1,0,0,1,0] => [1,3,4,5,2,6] => ([(2,5),(3,5),(4,5)],6) => 2
[1,0,1,1,0,1,0,1,0,1,0,0] => [1,3,4,5,6,2] => ([(1,5),(2,5),(3,5),(4,5)],6) => 1
[1,0,1,1,0,1,0,1,1,0,0,0] => [1,3,4,6,2,5] => ([(1,5),(2,5),(3,4),(4,5)],6) => 1
[1,0,1,1,0,1,1,0,0,0,1,0] => [1,3,5,2,4,6] => ([(2,5),(3,4),(4,5)],6) => 2
[1,0,1,1,0,1,1,0,0,1,0,0] => [1,3,5,2,6,4] => ([(1,5),(2,4),(3,4),(3,5)],6) => 1
[1,0,1,1,0,1,1,0,1,0,0,0] => [1,3,5,6,2,4] => ([(1,5),(2,3),(2,4),(3,5),(4,5)],6) => 1
[1,0,1,1,0,1,1,1,0,0,0,0] => [1,3,6,2,4,5] => ([(1,5),(2,5),(3,4),(4,5)],6) => 1
[1,0,1,1,1,0,0,0,1,0,1,0] => [1,4,2,3,5,6] => ([(3,5),(4,5)],6) => 3
[1,0,1,1,1,0,0,0,1,1,0,0] => [1,4,2,3,6,5] => ([(1,2),(3,5),(4,5)],6) => 1
[1,0,1,1,1,0,0,1,0,0,1,0] => [1,4,2,5,3,6] => ([(2,5),(3,4),(4,5)],6) => 2
[1,0,1,1,1,0,0,1,0,1,0,0] => [1,4,2,5,6,3] => ([(1,5),(2,5),(3,4),(4,5)],6) => 1
[1,0,1,1,1,0,0,1,1,0,0,0] => [1,4,2,6,3,5] => ([(1,5),(2,4),(3,4),(3,5)],6) => 1
[1,0,1,1,1,0,1,0,0,0,1,0] => [1,4,5,2,3,6] => ([(2,4),(2,5),(3,4),(3,5)],6) => 2
[1,0,1,1,1,0,1,0,0,1,0,0] => [1,4,5,2,6,3] => ([(1,5),(2,3),(2,4),(3,5),(4,5)],6) => 1
[1,0,1,1,1,0,1,0,1,0,0,0] => [1,4,5,6,2,3] => ([(1,4),(1,5),(2,4),(2,5),(3,4),(3,5)],6) => 1
[1,0,1,1,1,0,1,1,0,0,0,0] => [1,4,6,2,3,5] => ([(1,5),(2,3),(2,4),(3,5),(4,5)],6) => 1
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Description
The number of isolated vertices of a graph.
Map
graph of inversions
Description
The graph of inversions of a permutation.
For a permutation of $\{1,\dots,n\}$, this is the graph with vertices $\{1,\dots,n\}$, where $(i,j)$ is an edge if and only if it is an inversion of the permutation.
For a permutation of $\{1,\dots,n\}$, this is the graph with vertices $\{1,\dots,n\}$, where $(i,j)$ is an edge if and only if it is an inversion of the permutation.
Map
to 321-avoiding permutation (Krattenthaler)
Description
Krattenthaler's bijection to 321-avoiding permutations.
Draw the path of semilength $n$ in an $n\times n$ square matrix, starting at the upper left corner, with right and down steps, and staying below the diagonal. Then the permutation matrix is obtained by placing ones into the cells corresponding to the peaks of the path and placing ones into the remaining columns from left to right, such that the row indices of the cells increase.
Draw the path of semilength $n$ in an $n\times n$ square matrix, starting at the upper left corner, with right and down steps, and staying below the diagonal. Then the permutation matrix is obtained by placing ones into the cells corresponding to the peaks of the path and placing ones into the remaining columns from left to right, such that the row indices of the cells increase.
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