407680

Appears in sequences

• A certain partition array in Abramowitz-Stegun (A-St) order.at n=30A134149
• Triangle T, read by rows, where T(n,k) = A007559(n-k)*C(n,k) where A007559 equals the triple factorials in column 0.at n=29A136215
• A partition product of Stirling_2 type [parameter k = -4] with biggest-part statistic (triangle read by rows).at n=26A157398
• Molecular topological indices of the hypercube graphs.at n=6A192831
• Number of inequivalent ways to color the edges of a tetrahedron using at most n colors so that no two adjacent edges have the same color.at n=15A282818
• a(n) = phi(7^n+1), where phi is Euler's totient function (A000010).at n=7A366639
• a(n) is phi(n^n + 1) where phi is the Euler totient function.at n=7A366822