3451956516
domain: N
Appears in sequences
- Number of n X n arrays with each row a permutation of 1..n having at least as many downsteps as the preceding row.at n=4A221618
- Number of n X 5 arrays with each row a permutation of 1..5 having at least as many downsteps as the preceding row.at n=4A221620
- T(n,k)=Number of nXk arrays with each row a permutation of 1..k having at least as many downsteps as the preceding row.at n=40A221623
- Number of 5Xn arrays with each row a permutation of 1..n having at least as many downsteps as the preceding row.at n=4A221627