53635

Appears in sequences

• a(n) = Sum_{ d|n } sigma(n/d)*d^4.at n=14A027848
• Number of one-sided poly-[4.8^2]-tiles (holes allowed) with n cells (division into triangles is significant).at n=13A197466
• Number of friezes of type B_n.at n=8A247416
• a(n) = Sum_{d|n} d^4*A000593(n/d).at n=14A288420
• G.f. A(x) satisfies A(x) = Product_{k>=1} 1/(1 + x^k*A(x)).at n=12A298260
• Number of cross-equivalence classes of the symmetric group S_n, where two permutations are cross-equivalent if the multiset of forward distances for every element i in the permutation, for 1 <= i <= n-1, up to and including n, is the same.at n=9A370656