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A050843
Numbers n such that 183*2^n-1 is prime.
0
4, 11, 22, 31, 52, 56, 59, 67, 88, 104, 251, 572, 724, 1379, 2696, 3616, 3928, 8518, 9239, 9419, 10547, 20396, 42136, 43936, 69422, 313127, 330275, 358568, 411974
OFFSET
1,1
PROG
(PARI) is(n)=ispseudoprime(183*2^n-1) \\ Charles R Greathouse IV, Jun 13 2017
CROSSREFS
Sequence in context: A338969 A318180 A301115 * A360039 A301152 A301083
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