1492993

Properties

Appears in sequences

• Class 1- (or Pierpont) primes: primes of the form 2^t*3^u + 1.at n=43A005109
• Primes of form 1+(2^a)*(3^b), a>0, b>0.at n=37A058383
• Numbers n such that sigma(n) = 2n - 3*phi(phi(n)).at n=38A110074
• Primes of the form 4n^3 + 1.at n=15A199307
• Prime numbers p such that p^2 - 1 has exactly one distinct prime factor other than 2 and 3.at n=25A215504
• Generalized cuban primes (A007645) which are also Class 1- (or Pierpont) primes (A005109).at n=38A217035
• Primes p such that p-1 and p+1 have two distinct prime factors.at n=22A284037
• Prime powers whose neighbors' greatest odd divisors are powers of primes.at n=36A340815
• Integers K such that PSL_2(K) is a K_4-simple group, i.e., |PSL_2(K)| has 4 distinct prime divisors.at n=37A364003
• 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=26A376008
• Prime numbersat n=113675