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A322972
Numbers k such that 349*2^k+1 is prime.
0
10, 26, 38, 46, 1114, 2294, 26566, 115870, 433066, 561646
OFFSET
1,1
MATHEMATICA
Select[Range[1000], PrimeQ[349*2^# + 1] &] (* Robert Price, Jan 01 2019 *)
CROSSREFS
Sequence in context: A262998 A245021 A045039 * A080059 A071348 A361259
KEYWORD
nonn,more,hard
AUTHOR
Robert Price, Jan 01 2019
STATUS
approved