516192

Appears in sequences

• Number of partially achiral planted trees with n nodes.at n=25A003237
• Array read by downward antidiagonals: A(n,k) = (k+1)^2*A(n-1,k) + A(n-1,k+1) with A(0,k) = 1, n >= 0, k >= 0.at n=40A369527