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A032393
Numbers k such that 87*2^k+1 is prime.
1
2, 6, 8, 18, 26, 56, 78, 86, 104, 134, 207, 518, 602, 1268, 1302, 2324, 2372, 4574, 5652, 5966, 6146, 6378, 7502, 7682, 7895, 9198, 9344, 11106, 11504, 12096, 19904, 19932, 20816, 43406, 57222, 61202, 83766, 98978, 121562, 177078, 187454, 315486, 370746
OFFSET
1,1
PROG
(PARI) is(n)=ispseudoprime(87*2^n+1) \\ Charles R Greathouse IV, Jun 13 2017
CROSSREFS
Sequence in context: A152598 A154610 A053658 * A102656 A163911 A301799
KEYWORD
nonn
EXTENSIONS
More terms (from http://web.archive.org/web/20161028080239/http://www.prothsearch.net/riesel.html), Joerg Arndt, Apr 07 2013
Terms moved from Data section to b-file, and more terms appended to b-file, by Jeppe Stig Nielsen, Jan 18 2020
STATUS
approved