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 A263562 Primes p such that for every k >= 1, p*2^k - 1 has a divisor in the set {3, 5, 13, 17, 97, 241, 257}. 2
 1865978047, 1889699677, 2362339121, 3637126963, 11776639499, 19321614419, 20000692169, 20111311169, 20592473107, 20597584901, 21477425107, 23368396573, 23479945327, 25326720611, 26161244323, 27190405961, 27380064223, 27474950743, 31467088979 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS What is the smallest term of this sequence that belongs to A180247? Is it the smallest prime Brier number? LINKS Chris Caldwell, The Prime Glossary, Riesel number Carlos Rivera, Problem 52 CROSSREFS Cf. A101036, A180247, A263560. Subsequence of A263561. Sequence in context: A325900 A251282 A015429 * A204813 A103752 A105383 Adjacent sequences:  A263559 A263560 A263561 * A263563 A263564 A263565 KEYWORD nonn AUTHOR Arkadiusz Wesolowski, Oct 21 2015 STATUS approved

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Last modified February 18 04:48 EST 2020. Contains 332011 sequences. (Running on oeis4.)