47606

Appears in sequences

• Triangle read by rows: enumerates pairs of amicable permutations by rises.at n=38A259465
• Triangle read by rows: enumerates pairs of amicable permutations by rises.at n=44A259465
• a(n) = (8*n+13*n^3+3*n^5)/24; also the sum of triangular numbers taken in successive groups of increasing size (see Example).at n=12A260513
• G.f.: B(x)*B(2*x^2)*B(3*x^3)*..., where B(x) is g.f. of A000312.at n=6A326985