1071630

Appears in sequences

• Product of nonzero digits of A066553(n).at n=16A066584
• Triangle read by rows: T(n,k) = number of forests of k labeled rooted trees of height at most 1, with n labels, where any root may contain >= 1 labels, n >= 0, 0 <= k <= n.at n=49A143395
• Expansion of x^k/Product_{t=k..2k} (1-tx) for k=4.at n=9A143399
• Triangle read by rows: coefficients T(n,k) of a binomial decomposition of n^n as Sum(k=0..n)T(n,k)*binomial(n,k).at n=58A244120