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A323196
Numbers k such that 453*2^k+1 is prime.
1
1, 10, 16, 18, 21, 33, 37, 48, 57, 66, 96, 108, 133, 198, 262, 480, 550, 673, 858, 988, 1065, 1576, 1737, 1756, 1920, 2362, 2860, 2917, 4666, 5988, 6598, 11206, 14326, 28317, 37158, 53617, 53896, 63925, 80022, 125992, 186325, 211897, 318880, 428428, 443212
OFFSET
1,2
LINKS
Jeppe Stig Nielsen, Table of n, a(n) for n = 1..51 (terms n = 1..49 from Robert Price)
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[453*2^# + 1] &]
CROSSREFS
Sequence in context: A104869 A104868 A103208 * A352240 A187797 A352297
KEYWORD
nonn,hard
AUTHOR
Robert Price, Jan 06 2019
STATUS
approved