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 A032399 Numbers k such that 99*2^k+1 is prime. 1
 1, 2, 5, 6, 10, 11, 22, 31, 33, 34, 41, 42, 53, 58, 65, 82, 126, 143, 162, 170, 186, 189, 206, 211, 270, 319, 369, 410, 433, 631, 894, 1617, 2025, 4029, 4082, 5118, 6875, 8337, 14723, 16627, 20341, 24653, 32054, 47985, 57814, 62361, 63558, 69947 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS Joerg Arndt, Table of n, a(n) for n = 1..68 (from http://www.prothsearch.com/riesel1.html) Ray Ballinger, Proth Search Page Ray Ballinger and Wilfrid Keller, List of primes k.2^n + 1 for k < 300 Wilfrid Keller, List of primes k.2^n - 1 for k < 300 PROG (PARI) is(n)=ispseudoprime(99*2^n+1) \\ Charles R Greathouse IV, Jun 07 2017 CROSSREFS Sequence in context: A273324 A238096 A064572 * A276496 A007969 A187902 Adjacent sequences:  A032396 A032397 A032398 * A032400 A032401 A032402 KEYWORD nonn AUTHOR STATUS approved

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Last modified July 29 11:44 EDT 2021. Contains 346344 sequences. (Running on oeis4.)