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A318195
Numbers k such that 469*2^k+1 is prime.
0
2, 190, 242, 326, 1562, 31430, 43666, 497206, 504610
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OFFSET
1,1
LINKS
Table of n, a(n) for n=1..9.
Ray Ballinger,
Proth Search Page
Ray Ballinger and Wilfrid Keller,
List of primes k.2^n + 1 for 300 < k < 600
Y. Gallot,
Proth.exe: Windows Program for Finding Large Primes
Wilfrid Keller,
List of primes k.2^n - 1 for k < 300
Eric Weisstein's World of Mathematics,
Proth Prime
Index entries for sequences of n such that k*2^n-1 (or k*2^n+1) is prime
MATHEMATICA
Select[Range[1000], PrimeQ[469*2^# + 1] &]
CROSSREFS
Sequence in context:
A053936
A252765
A172801
*
A307587
A235680
A085937
Adjacent sequences:
A318192
A318193
A318194
*
A318196
A318197
A318198
KEYWORD
nonn
,
more
,
hard
AUTHOR
Robert Price
, Jan 07 2019
STATUS
approved
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Last modified April 24 19:06 EDT 2024. Contains 371962 sequences. (Running on oeis4.)