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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
OFFSET
1,1
MATHEMATICA
Select[Range[1000], PrimeQ[469*2^# + 1] &]
CROSSREFS
Sequence in context: A053936 A252765 A172801 * A307587 A235680 A085937
KEYWORD
nonn,more,hard
AUTHOR
Robert Price, Jan 07 2019
STATUS
approved