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A323001 Numbers k such that 353*2^k+1 is prime. 0
21, 369, 143841, 286149 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
Ray Ballinger, Proth Search Page
Ray Ballinger and Wilfrid Keller, List of primes k.2^n + 1 for 300 < k < 600
Eric Weisstein's World of Mathematics, Proth Prime
MATHEMATICA
Select[Range[1000], PrimeQ[353*2^# + 1] &] (* Robert Price, Jan 01 2019 *)
CROSSREFS
Sequence in context: A108495 A178351 A324360 * A152182 A036904 A218763
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.)