A075745 - OEIS

A075745

Numbers n such that 210*n + 13 is prime.

0, 1, 2, 3, 4, 5, 7, 8, 10, 14, 15, 16, 17, 18, 19, 21, 27, 32, 36, 38, 41, 43, 45, 47, 48, 49, 50, 51, 54, 60, 61, 62, 66, 67, 68, 69, 70, 71, 76, 77, 79, 83, 85, 88, 90, 92, 93, 94, 95, 96, 98, 100, 102, 105, 106, 107, 113, 116, 118, 121, 122, 124, 125, 127, 128, 129, 132

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,3

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

EXAMPLE

n=2: 210*2 + 13 = 433 is prime.

MATHEMATICA

Select[Range[0, 500], PrimeQ[210*# + 13] &] (* Vincenzo Librandi, Oct 04 2012 *)

PROG

(Magma) [n: n in [0..150]| IsPrime(210*n + 13)]; // Vincenzo Librandi, Oct 04 2012

(PARI) is(n)=isprime(210*n+13) \\ Charles R Greathouse IV, May 22 2017