177472

Appears in sequences

• Dirichlet convolution of 3^(n-1) with phi(n).at n=11A034754
• An antidiagonal triangle based on: t(n,q) = If[n == 0, 1, Sum[Eulerian[n, k]*q^n, {k, 1, n, 2}]].at n=36A174005
• Number of permutations of [n] with an odd number of rises.at n=9A262745