21855093751
domain: N
Appears in sequences
- Number of n X n matrices in which each row is a permutation of [1..n] and which contain no column rises.at n=4A212806
- Number of n X 5 arrays with rows being permutations of 0..4 and no column j greater than column j-1 in all rows.at n=4A212852
- T(n,k) = number of n X k arrays with rows being permutations of 0..k-1 and no column j greater than column j-1 in all rows (n, k >= 1).at n=40A212855
- Number of 5 X n arrays with rows being permutations of 0..n-1 and no column j greater than column j-1 in all rows.at n=5A212858