422712

Appears in sequences

• Triangle, T(n, k) = A008517(n+1, k+1)*A008517(n+1, n-k+1), read by rows.at n=16A156529
• Triangle, T(n, k) = A008517(n+1, k+1)*A008517(n+1, n-k+1), read by rows.at n=19A156529