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A032382
Numbers k such that 65*2^k+1 is prime.
1
1, 3, 5, 11, 17, 21, 29, 47, 85, 93, 129, 151, 205, 239, 257, 271, 307, 351, 397, 479, 553, 1317, 1631, 1737, 1859, 1917, 1999, 2353, 3477, 4331, 4337, 5809, 8707, 9649, 10421, 11117, 17425, 18343, 20791, 21035, 28331, 34249, 45029, 73237, 84839, 106515
OFFSET
1,2
PROG
(PARI) is(n)=ispseudoprime(65*2^n+1) \\ Charles R Greathouse IV, Jun 13 2017
CROSSREFS
Sequence in context: A220954 A155937 A050566 * A167921 A216366 A136084
KEYWORD
nonn
EXTENSIONS
More terms (from http://web.archive.org/web/20161028080239/http://www.prothsearch.net/riesel.html), Joerg Arndt, Apr 07 2013
a(66) from http://www.prothsearch.com/riesel1.html by Robert Price, Dec 14 2018
Terms moved from Data section to b-file, and more terms appended to b-file, by Jeppe Stig Nielsen, Jan 18 2020
STATUS
approved