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A050585
Numbers n such that 119*2^n-1 is prime.
0
12, 16, 52, 160, 192, 216, 376, 436, 266136, 401552
OFFSET
1,1
PROG
(PARI) is(n)=ispseudoprime(119*2^n-1) \\ Charles R Greathouse IV, Jun 13 2017
CROSSREFS
Sequence in context: A341297 A323978 A219390 * A050555 A060669 A166644
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