52613349377
domain: N
Appears in sequences
- Primes of the form 2^r*7^s + 1.at n=29A077498
- Smallest prime of the form (k^2 * 2^n + 1).at n=27A122912
- Primes of the form 2^(n-1)*(n+1)^2-(-1)^n.at n=13A216428
- Prime factors of generalized Fermat numbers of the form 12^(2^m) + 1 with m >= 0.at n=31A273950
- 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=29A370879