5767169

Properties

Appears in sequences

• Smallest prime of form 2^n*k + 1.at n=19A035089
• Primes of the form 11*2^k + 1.at n=4A050529
• Minimal 2^n safe-primes: a(n) = 2^n*A051886(n) + 1 (a prime number).at n=19A051900
• a(n) is the least prime p such that p-1 is divisible by 2^n and not by 2^(n+1).at n=19A057775
• Primes p for which the period of 1/p is a power of 2.at n=19A072982
• Primes of the form 2^r*11^s + 1.at n=14A077499
• a(n) = 11*2^n + 1.at n=19A083683
• Duplicate of A051900.at n=19A084706
• Smallest prime p such that both (p-1)/2^(2n-1) and 2^(2n-1)*p+1 are primes.at n=9A085832
• a(n) = 2*a(n-1) - 1 for n>1, a(1)=23.at n=18A122041
• Least prime of the form 1 + p*2^n, where p is an odd prime.at n=18A134854
• Prime factors of generalized Fermat numbers of the form 12^(2^m) + 1 with m >= 0.at n=18A273950
• Number of (not necessarily maximal) cliques in the n-folded cube graph.at n=18A295921
• Primes p such that the odd part of p - 1 is upper-bounded by the dyadic valuation of p - 1.at n=17A361180
• Primes p such that valuation(p-1,2) is a record.at n=12A370606
• a(n) = 2^n*t + 1 where t is the least x such that there exists an r in the range 2 <= r <= x+1 that is coprime to 2^n*x + 1 and has multiplicative order 2^n modulo 2^n*x + 1.at n=18A370879
• Prime numbersat n=397907