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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
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
Sequence in context: A366773 A216814 A180427 * A100912 A174721 A026224
KEYWORD
nonn
AUTHOR
Artur Jasinski, Jan 19 2007
STATUS
approved

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Last modified March 28 14:02 EDT 2024. Contains 371254 sequences. (Running on oeis4.)