# Greetings from The On-Line Encyclopedia of Integer Sequences! http://oeis.org/ Search: id:a263562 Showing 1-1 of 1 %I A263562 #14 Apr 03 2023 10:36:13 %S A263562 1865978047,1889699677,2362339121,3637126963,11776639499,19321614419, %T A263562 20000692169,20111311169,20592473107,20597584901,21477425107, %U A263562 23368396573,23479945327,25326720611,26161244323,27190405961,27380064223,27474950743,31467088979 %N 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}. %C A263562 What is the smallest term of this sequence that belongs to A180247? Is it the smallest prime Brier number? %H A263562 Chris Caldwell, The Prime Glossary, Riesel number %H A263562 Carlos Rivera, Problem 52 %Y A263562 Cf. A101036, A180247, A263560. %Y A263562 Subsequence of A263561. %K A263562 nonn %O A263562 1,1 %A A263562 _Arkadiusz Wesolowski_, Oct 21 2015 # Content is available under The OEIS End-User License Agreement: http://oeis.org/LICENSE