2654209

Properties

Appears in sequences

• a(n) is the n-th prime of the form n*x^2+1.at n=31A128970
• a(n) = smallest prime p such that p-1 and p+1 together have n prime divisors, or a(n) = 0 if no such prime exists.at n=23A155800
• p^2 + (p+2)^2 - 1 where (p,p+2) is the n-th twin prime pair.at n=40A184417
• Primes of the form 3n^3+1.at n=16A201112
• Primes p such that p+1 is the sum of the squares of a pair of twin primes.at n=11A224505
• Primes p such that there exists a cyclic permutation of the nonzero residues modulo p such that v^2 - 4*u*w == 0 (mod p) for any three consecutive residues u,v,w.at n=31A376008
• Prime numbersat n=193541