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A032460
Numbers n such that 167*2^n+1 is prime.
2
7, 103, 151, 247, 10183, 55447
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OFFSET
1,1
LINKS
Table of n, a(n) for n=1..6.
Ray Ballinger,
Proth Search Page
Index entries for sequences of n such that k*2^n-1 (or k*2^n+1) is prime
PROG
(PARI) is(n)=ispseudoprime(167*2^n+1) \\
Charles R Greathouse IV
, May 22 2017
CROSSREFS
Sequence in context:
A223239
A140633
A142400
*
A267234
A246914
A274670
Adjacent sequences:
A032457
A032458
A032459
*
A032461
A032462
A032463
KEYWORD
nonn
,
hard
AUTHOR
N. J. A. Sloane
.
STATUS
approved
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Last modified September 11 23:02 EDT 2024. Contains 375842 sequences. (Running on oeis4.)