730800

Appears in sequences

• a(n) = n^2*(n-1)*(n-2).at n=28A047929
• Triangle T(n,k) of number of loopless multigraphs with n labeled edges and k labeled vertices and without isolated vertices, n >= 1; 2 <= k <= 2*n.at n=22A122193
• Array read by antidiagonals: T(m,n) = Sum(1<=i<=m) i * ( n + 2(i-1) )!at n=29A211366
• Triangle read by rows: coefficients of polynomials Q_n(x) arising in study of Riemann zeta function.at n=25A217940
• Triangle: Newton expansion of C(n,m)^5, read by rows.at n=38A262706