90720000

Appears in sequences

• Triangle whose (i,j)-th entry is binomial(i,j)*5^(i-j)*12^j.at n=32A038254
• Triangle whose (i,j)-th entry is binomial(i,j)*12^(i-j)*5^j.at n=31A038331
• 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=32A122193
• Number of even entries that are followed by a smaller entry in all permutations of {1,2,...,n}.at n=10A145889
• a(n) = floor(n^2/4)*n!.at n=10A306258