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A032392
Numbers k such that 85*2^k+1 is prime.
0
4, 6, 10, 30, 34, 36, 38, 74, 88, 94, 148, 200, 624, 1300, 2458, 2556, 3638, 3834, 8956, 15058, 15818, 25954, 187576, 382836, 466658, 818760, 876458, 892568, 1072368, 1910520
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OFFSET
1,1
LINKS
Table of n, a(n) for n=1..30.
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^n-1 (or k*2^n+1) is prime
PROG
(PARI) is(n)=ispseudoprime(85*2^n+1) \\
Charles R Greathouse IV
, Jun 13 2017
CROSSREFS
Sequence in context:
A322961
A291542
A242565
*
A253048
A271956
A242502
Adjacent sequences:
A032389
A032390
A032391
*
A032393
A032394
A032395
KEYWORD
nonn
AUTHOR
James R. Buddenhagen
EXTENSIONS
More terms (from http://web.archive.org/web/20161028080239/http://www.prothsearch.net/riesel.html
),
Joerg Arndt
, Apr 07 2013
STATUS
approved
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Last modified September 13 12:29 EDT 2024. Contains 375907 sequences. (Running on oeis4.)