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A050902
Numbers n such that 287*2^n-1 is prime.
0
4, 6, 8, 14, 16, 18, 28, 64, 114, 248, 644, 978, 1214, 1928, 1954, 3604, 4234, 6964, 7466, 12316, 14464, 35106, 92986, 525378
OFFSET
1,1
PROG
(PARI) is(n)=ispseudoprime(287*2^n-1) \\ Charles R Greathouse IV, Jun 13 2017
CROSSREFS
Sequence in context: A261680 A218465 A359676 * A374190 A320125 A110974
KEYWORD
hard,nonn
AUTHOR
N. J. A. Sloane, Dec 29 1999
EXTENSIONS
More terms from Herman Jamke (hermanjamke(AT)fastmail.fm), Jan 02 2008
STATUS
approved