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 A322955 Numbers k such that 325*2^k+1 is prime. 0
 2, 14, 18, 32, 42, 72, 144, 174, 282, 318, 828, 1338, 2154, 2750, 4034, 9858, 13692, 49052, 63522, 86784, 117162, 126014, 273090, 302574, 413862, 901902 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Ray Ballinger, Proth Search Page Ray Ballinger and Wilfrid Keller, List of primes k.2^n + 1 for 300 < k < 600 Wilfrid Keller, List of primes k.2^n - 1 for k < 300 Eric Weisstein's World of Mathematics, Proth Prime MAPLE select(n->isprime(325*2^n+1), [\$1..1000]); # Muniru A Asiru, Dec 31 2018 MATHEMATICA Select[Range[1000], PrimeQ[325*2^# + 1] &] (* Robert Price, Dec 31 2018 *) CROSSREFS Cf. A002255, A050527. Sequence in context: A096508 A108029 A212048 * A266388 A032476 A274062 Adjacent sequences:  A322952 A322953 A322954 * A322956 A322957 A322958 KEYWORD nonn,more,hard AUTHOR Robert Price, Dec 31 2018 STATUS approved

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Last modified June 18 12:21 EDT 2021. Contains 345104 sequences. (Running on oeis4.)