391391
domain: N
Appears in sequences
- Expansion of f(-x, -x^5) * f(x, x^7) / f(-x, -x^2)^2 in powers of x where f(, ) is Ramanujan's general theta function.at n=34A262146
- Where n appears in A351495, or -1 if it never occurs.at n=18A361332
- Index of prime(n) in A351495.at n=7A361333
- Product of the smaller primes, p, in the Goldbach partitions of 2n such that p + q = 2n, p <= q, and p,q prime (or 1 if no Goldbach partition of 2n exists).at n=26A362641