17052210

Appears in sequences

• Number of nX7 arrays with each row a permutation of 1..7 having at least as many downsteps as the preceding row.at n=1A221622
• 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=29A221623
• Number of 2Xn arrays with each row a permutation of 1..n having at least as many downsteps as the preceding row.at n=6A221624