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 A127591 Numbers k such that 64k+21 is prime. 6
 2, 4, 10, 13, 17, 19, 20, 22, 23, 25, 29, 32, 37, 44, 50, 53, 55, 58, 59, 62, 68, 79, 83, 88, 89, 94, 95, 97, 100, 107, 109, 113, 118, 122, 134, 142, 143, 152, 155, 157, 158, 163, 167, 169, 173, 193, 194, 199, 200 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Harvey P. Dale, Table of n, a(n) for n = 1..1000 MATHEMATICA a = {}; Do[If[PrimeQ[21 + 64 n], AppendTo[a, n]], {n, 0, 200}]; a Select[Range[200], PrimeQ[64#+21]&] (* Harvey P. Dale, Jan 15 2016 *) CROSSREFS Cf. A035050, A007522, A127575, A127576, A127577, A127578, A127580, A127581, A087522, A127586, A127587, A127589, A127590, A127592, A127593, A127594. Sequence in context: A092367 A216814 A180427 * A100912 A174721 A026224 Adjacent sequences:  A127588 A127589 A127590 * A127592 A127593 A127594 KEYWORD nonn AUTHOR Artur Jasinski, Jan 19 2007 STATUS approved

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Last modified November 30 08:19 EST 2021. Contains 349419 sequences. (Running on oeis4.)