A050544 Numbers k such that 37*2^k-1 is prime.
1, 2553, 4893, 7897, 14353, 32125, 51477, 78973, 341365
Offset: 1
Links
- Ray Ballinger and Wilfrid Keller, List of primes k.2^n + 1 for k < 300
- Wilfrid Keller, List of primes k.2^n - 1 for k < 300
- Index entries for sequences of n such that k*2^n-1 (or k*2^n+1) is prime
- Kosmaj, Riesel list k<300.
Programs
-
PARI
is(n)=ispseudoprime(37*2^n-1) \\ Charles R Greathouse IV, Jun 12 2017
Extensions
More terms from David Broadhurst, Dec 29 1999
More terms from Herman Jamke (hermanjamke(AT)fastmail.fm), Jan 02 2008