A182296 - OEIS

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

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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.