A108979 Numbers n such that 31*n + 29 is prime.

0, 8, 12, 14, 18, 24, 32, 50, 60, 62, 68, 78, 84, 90, 98, 102, 104, 144, 150, 162, 164, 168, 188, 192, 194, 200, 204, 222, 230, 234, 248, 252, 260, 272, 278, 302, 318, 320, 330, 332, 342, 354, 362, 368, 384, 390, 402, 404, 410, 420, 428, 432, 440, 468, 474, 498

Offset

1,2

Links

Table of n, a(n) for n=1..56.

Example

If n=0 then 31*n + 29 = 29 (prime).
If n=98 then 31*n + 29 = 3067 (prime).

Mathematica

Select[Range[0, 500], PrimeQ[31#+29]&] (* Harvey P. Dale, May 15 2018 *)

Prog

(Magma) [n: n in [0..10000] |IsPrime(31*n + 29)] - Vincenzo Librandi, Nov 13 2010
(PARI) is(n)=isprime(31*n+29) \\ Charles R Greathouse IV, Jun 13 2017

Crossrefs

Sequence in context: A244723 A106669 A329865 * A107071 A114414 A032455

Adjacent sequences: A108976 A108977 A108978 * A108980 A108981 A108982

Keyword

nonn,easy

Author

Parthasarathy Nambi, Jul 27 2005

Status

approved