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A322998
Numbers k such that 385*2^k+1 is prime.
1
8, 10, 14, 16, 36, 62, 76, 88, 114, 138, 258, 278, 338, 416, 538, 590, 736, 1074, 1154, 1262, 1768, 2602, 2820, 3436, 3702, 3970, 4778, 5990, 7598, 8088, 9398, 9628, 13036, 14954, 15112, 16334, 16636, 17958, 22994, 23054, 25130, 30660, 35358, 64560, 78770
OFFSET
1,1
LINKS
Jeppe Stig Nielsen, Table of n, a(n) for n = 1..62 (terms n = 1..60 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
MAPLE
select(k->isprime(385*2^k+1), [$1..1000]); # Muniru A Asiru, Jan 03 2019
MATHEMATICA
Select[Range[1000], PrimeQ[385*2^# + 1] &]
CROSSREFS
Sequence in context: A163628 A060864 A087695 * A368280 A262708 A134321
KEYWORD
nonn,hard
AUTHOR
Robert Price, Jan 03 2019
STATUS
approved