# Greetings from The On-Line Encyclopedia of Integer Sequences! http://oeis.org/ Search: id:a032383 Showing 1-1 of 1 %I A032383 #34 Dec 22 2024 20:22:02 %S A032383 2,6,14,20,44,66,74,102,134,214,236,238,342,354,382,454,470,598,726, %T A032383 870,1148,1366,1692,1782,1870,3602,6574,9362,12366,20774,24500,29266, %U A032383 32650,51942,101742,103572,305166,339116,466532,469596,576558,684258,752396,773566 %N A032383 Numbers k such that 67*2^k+1 is prime. %H A032383 Jeppe Stig Nielsen, Table of n, a(n) for n = 1..49 %H A032383 Ray Ballinger, Proth Search Page %H A032383 Ray Ballinger and Wilfrid Keller, List of primes k.2^n + 1 for k < 300 %H A032383 Y. Gallot, Proth.exe: Windows Program for Finding Large Primes %H A032383 Wilfrid Keller, List of primes k.2^n - 1 for k < 300 %H A032383 Index entries for sequences of n such that k*2^n-1 (or k*2^n+1) is prime %o A032383 (PARI) is(n)=ispseudoprime(67*2^n+1) \\ _Charles R Greathouse IV_, Jun 13 2017 %K A032383 nonn %O A032383 1,1 %A A032383 _James R. Buddenhagen_ %E A032383 More terms (from http://web.archive.org/web/20161028080239/http://www.prothsearch.net/riesel.html), _Joerg Arndt_, Apr 07 2013 %E A032383 Term moved from Data section to b-file, and more terms appended to b-file, by _Jeppe Stig Nielsen_, Jan 18 2020 # Content is available under The OEIS End-User License Agreement: http://oeis.org/LICENSE