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A050905
Numbers n such that 293*2^n-1 is prime.
0
2, 26, 34, 66, 124, 560, 600, 1344, 1714, 1904, 5200, 7602, 10344, 63484, 196258, 213346, 243698, 421330, 517242
OFFSET
1,1
PROG
(PARI) is(n)=ispseudoprime(293*2^n-1) \\ Charles R Greathouse IV, Jun 13 2017
CROSSREFS
Sequence in context: A022375 A072663 A276176 * A067571 A319486 A084298
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