31277

Properties

Appears in sequences

• Expansion of 1/(1-x^5-x^6-x^7-x^8-x^9-x^10-x^11-x^12-x^13-x^14-x^15).at n=45A017846
• Numbers k such that in the ring Z[sqrt(3)] the norm of (-1+sqrt(3))^k-1 is prime.at n=19A067834
• Primes for which the five closest primes are smaller.at n=18A075037
• Primes p=prime(i) of level (1,6), i.e., such that A118534(i) = prime(i-6).at n=2A216180
• Primes of the form x^3 + 2*y^3, with nonnegative x and y.at n=42A219559
• Primes p such that q=p^2+p+1 is prime and (q^2+q+1)/3 is prime.at n=36A322748
• Emirp-indexed emirps: emirps with emirp subscripts.at n=30A326442
• Prime numbersat n=3373