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A322961
Numbers k such that 337*2^k+1 is prime.
0
4, 6, 10, 26, 64, 66, 70, 102, 322, 370, 570, 1750, 1782, 1974, 2482, 6886, 7782, 9784, 20476, 34826, 37546, 46566, 47800, 132962, 184230, 257930, 286554, 370274, 544852, 648856, 2585660, 2750860
OFFSET
1,1
MAPLE
select(n->isprime(337*2^n+1), [$1..1000]); # Muniru A Asiru, Dec 31 2018
MATHEMATICA
Select[Range[1000], PrimeQ[337*2^# + 1] &] (* Robert Price, Dec 31 2018 *)
CROSSREFS
Sequence in context: A077065 A131867 A252656 * A291542 A242565 A032392
KEYWORD
nonn,more,hard
AUTHOR
Robert Price, Dec 31 2018
EXTENSIONS
a(31)-a(32) from Jeppe Stig Nielsen, Dec 27 2019
STATUS
approved