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 A024896 Numbers k such that 5*k - 2 is prime. 2
 1, 3, 5, 9, 11, 15, 17, 21, 23, 33, 35, 39, 45, 47, 53, 57, 59, 63, 71, 75, 77, 87, 89, 93, 101, 105, 113, 119, 123, 129, 131, 135, 137, 147, 149, 155, 165, 171, 173, 177, 191, 197, 203, 207, 213, 219, 221, 225, 231, 233, 239, 243, 245, 257, 261, 275, 285, 287, 291, 297, 299 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS Vincenzo Librandi, Table of n, a(n) for n = 1..1000 MATHEMATICA Select[Range[300], PrimeQ[5 # - 2] &] (* Vincenzo Librandi, Sep 25 2012 *) PROG (Magma) [n: n in [1..1000] | IsPrime(5*n-2)] // Vincenzo Librandi, Nov 20 2010 (PARI) is(n)=isprime(5*n-2) \\ Charles R Greathouse IV, May 22 2017 CROSSREFS Sequence in context: A084060 A328574 A227157 * A160771 A249426 A040976 Adjacent sequences: A024893 A024894 A024895 * A024897 A024898 A024899 KEYWORD nonn,easy AUTHOR STATUS approved

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Last modified December 1 10:27 EST 2022. Contains 358468 sequences. (Running on oeis4.)