85035

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=3A221618
• Number of n X 4 arrays with each row a permutation of 1..4 having at least as many downsteps as the preceding row.at n=3A221619
• 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=24A221623
• Number of 4Xn arrays with each row a permutation of 1..n having at least as many downsteps as the preceding row.at n=3A221626
• E.g.f. satisfies A(x) = 1 + (exp(x*A(x)^3) - 1)/A(x)^2.at n=6A367181