A182296 Prime Riesel numbers: primes p such that p*2^k - 1 is composite for all positive integers k.

509203, 1330207, 2251349, 2554843, 2924861, 3177553, 3292241, 3580901, 3661529, 3661543, 4384979, 6055001, 7576559, 7629217, 8086751, 8643209, 9053711, 9203917, 9545351, 10219379, 10645867, 10913233, 10913681, 11694013, 11942443, 13161283, 14608183, 15627133

Offset: 1

Author

Arkadiusz Wesolowski, Apr 23 2012

Keywords

• nonn

Comments

Primes in A101036.

Examples

			509203 is the first known prime p for which p*2^k - 1 is composite for all positive integers k, so a(1) = 509203.
		

Links

• Arkadiusz Wesolowski, Table of n, a(n) for n = 1..3701
• Eric Weisstein's World of Mathematics, Riesel Number

Crossrefs

Cf. A101036, A101050.