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A199364
Numbers k such that 4k^3 + 3 is prime.
3
0, 1, 5, 10, 14, 20, 28, 34, 38, 49, 55, 59, 61, 80, 98, 103, 118, 133, 145, 146, 154, 160, 185, 196, 206, 224, 229, 241, 245, 250, 251, 320, 325, 334, 376, 383, 385, 388, 398, 416, 418, 440, 451, 454, 475, 476, 481, 488, 490, 493, 496, 500
OFFSET
1,3
COMMENTS
See comment in A199307.
LINKS
MATHEMATICA
Select[Range[0, 3000], PrimeQ[4#^3+3]&] (* Vincenzo Librandi, Aug 01 2012 *)
PROG
(Magma) [n: n in [0..500] | IsPrime(4*n^3+3)]; // Bruno Berselli, Nov 08 2011
(PARI) is(n)=isprime(4*n^3+3) \\ Charles R Greathouse IV, May 22 2017
CROSSREFS
Sequence in context: A313652 A313653 A313654 * A313655 A313656 A313657
KEYWORD
nonn,easy
AUTHOR
N. J. A. Sloane, Nov 05 2011
EXTENSIONS
First term added by Vincenzo Librandi, Nov 08 2011
STATUS
approved