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

1,1

Comments

Primes in A101036.

Links

Arkadiusz Wesolowski, Table of n, a(n) for n = 1..3701

Eric Weisstein's World of Mathematics, Riesel Number

Example

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

Crossrefs

Cf. A101036, A101050.

Sequence in context: A101036 A244070 A206430 * A263958 A273987 A250057

Adjacent sequences: A182293 A182294 A182295 * A182297 A182298 A182299

Keyword

nonn

Author

Arkadiusz Wesolowski, Apr 23 2012

Status

approved