116831

Appears in sequences

• a(n) = (4*n + 3)*(1 + 2*n^2)/3.at n=35A168574
• 4-brilliant numbers with distinct prime factors.at n=20A376864
• G.f. A(x) = exp( Sum_{n>=1} sigma(n)*sigma(2*n)/3 * x^n/n ), where sigma(n) = A000203(n) is the sum of the divisors of n.at n=17A382124