19315
domain: N
Appears in sequences
- G.f.: 1/((1-x)*(1-x^2)*(1-x^3)*(1-x^4)*(1-x^5))^2.at n=22A117487
- Numbers n such that n*2^2203 - 1 is prime.at n=24A265503
- Number of factorizations of 2^n into factors > 1 with integer average.at n=47A326667
- Expansion of e.g.f. exp( 1/(1-2*x)^(5/2) - 1 ).at n=4A380213
- Centered 29-gonal numbers.at n=36A389798