43038

Appears in sequences

• Number of values of k for which prime(n) divides A001008(k), the numerator of the k-th harmonic number.at n=21A092103
• a(n) = n*(2*n^2 + 5*n + 1).at n=27A163832
• Solution of the complementary equation a(n) = a(n-1) + a(n-2) + b(n-1)*b(n), where a(0) = 2, a(1) = 3, b(0) = 1, b(1) = 4, b(2) = 5, and (a(n)) and (b(n)) are increasing complementary sequences.at n=15A296275
• a(n) = Sum_{d|n} Stirling2(n,d).at n=9A308037
• Number of polyforms with n cells on the faces of a deltoidal icositetrahedron up to rotation.at n=14A383805