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A323001
Numbers k such that 353*2^k+1 is prime.
0
21, 369, 143841, 286149
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OFFSET
1,1
LINKS
Table of n, a(n) for n=1..4.
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[353*2^# + 1] &] (*
Robert Price
, Jan 01 2019 *)
CROSSREFS
Sequence in context:
A108495
A178351
A324360
*
A152182
A036904
A218763
Adjacent sequences:
A322998
A322999
A323000
*
A323002
A323003
A323004
KEYWORD
nonn
,
more
,
hard
AUTHOR
Robert Price
, Jan 01 2019
STATUS
approved
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Last modified March 28 18:04 EDT 2024. Contains 371254 sequences. (Running on oeis4.)