165016

Appears in sequences

• 7th differences of factorial numbers.at n=2A023044
• a(n) = n*a(n-1) + (n-2)*a(n-2), a(0) = 0, a(1) = 2.at n=8A055790
• Triangle T[n,m]: T[n,-1] = 0; T[0,0] = 0; T[n,0] = n*n!; T[n,m] = T[n,m-1] - T[n-1,m-1].at n=42A061312
• Euler's difference table: triangle read by rows, formed by starting with factorial numbers (A000142) and repeatedly taking differences. T(n,n) = n!, T(n,k) = T(n,k+1) - T(n-1,k).at n=47A068106
• First differences of the rows in the triangle of A116853, starting with 0.at n=47A116854
• 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=28A264027