69958
domain: N
Appears in sequences
- Numbers n such that 105*2^n-1 is prime.at n=46A050578
- Coefficient of x^2 in the polynomial (x-p(n))*(x-p(n+1))*(x-p(n+2))*(x-p(n+3)), where p(k) is the k-th prime.at n=26A127348
- Number of regions in a complete but borderless regular polygon.at n=33A191101
- G.f.: Product_{k>=1} (1+x^(k^2)) / (1-x^k).at n=37A280204