1536000

Appears in sequences

• Triangle whose (i,j)-th entry is binomial(i,j)*5^(i-j)*8^j.at n=25A038250
• Triangle whose (i,j)-th entry is binomial(i,j)*8^(i-j)*5^j.at n=23A038283
• Triangular array T(n,k) giving number of weakly connected digraphs with n labeled nodes and k arcs (n >= 1, 0 <= k <= n(n-1)).at n=52A062735
• Constant term in the expansion of (-2 + Product_{k=1..n} (1 + x_k) + Product_{k=1..n} (1 + 1/x_k))^n.at n=5A328814
• a(n) = phi(7^n-1), where phi is Euler's totient function (A000010).at n=7A366635
• Number of minimum total dominating sets in the n-Hanoi graph.at n=4A382695