145836

Appears in sequences

• Number of triangles in an n X n grid of squares with diagonals.at n=36A100583
• a(n) = Sum_{k=0..n} C(n,k)^2*(n-k)!*k^3.at n=6A105218
• Square array T(n,k), n >= 0, k >= 0, read by antidiagonals, where T(n,k) = Sum_{j=0..n} j^k * (n-j)! * binomial(n,j)^2.at n=51A341200