1616786

Appears in sequences

• 8th differences of factorial numbers.at n=2A023045
• a(n) = n*a(n-1) + (n-2)*a(n-2), a(0) = 0, a(1) = 2.at n=9A055790
• Triangle read by rows: T(n, k) = Sum_{t=k..n-2} (-1)^(t-k)*(n-t)!*binomial(t,k)*binomial(n-2,t).at n=36A264027