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A032373
Numbers k such that 47*2^k+1 is prime.
3
583, 1483, 6115
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OFFSET
1,1
COMMENTS
Next term >= 4100000. 
Joerg Arndt
, Apr 07 2013
LINKS
Table of n, a(n) for n=1..3.
Ray Ballinger,
Proth Search Page
Ray Ballinger and Wilfrid Keller,
List of primes k.2^n + 1 for k < 300
Y. Gallot,
Proth.exe: Windows Program for Finding Large Primes
Wilfrid Keller,
List of primes k.2^n  1 for k < 300
Index entries for sequences of n such that k*2^n1 (or k*2^n+1) is prime
PROG
(PARI) is(n)=ispseudoprime(47*2^n+1) \\
Charles R Greathouse IV
, Feb 20 2017
CROSSREFS
Sequence in context:
A059468
A350663
A122694
*
A236486
A236491
A235433
Adjacent sequences:
A032370
A032371
A032372
*
A032374
A032375
A032376
KEYWORD
nonn
,
hard
,
bref
AUTHOR
James R. Buddenhagen
STATUS
approved
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Last modified February 20 18:38 EST 2024. Contains 370217 sequences. (Running on oeis4.)