A142424 - OEIS

A142424

Primes congruent to 12 mod 49.

61, 257, 1237, 1433, 1531, 2609, 2707, 2903, 3001, 3491, 4079, 4177, 4373, 5059, 5647, 5843, 6529, 6823, 7019, 7411, 7607, 7901, 8293, 8783, 9371, 10253, 10939, 11527, 11821, 12409, 12703, 12899, 13291, 13487, 13781, 13879, 14173, 14369, 14957, 15349, 15643

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

OFFSET

1,1

LINKS

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

FORMULA

a(n) ~ 42n log n. - Charles R Greathouse IV, Jul 03 2016

MATHEMATICA

Select[Prime[Range[2500]], MemberQ[{12}, Mod[#, 49]] &] (* Vincenzo Librandi, Aug 28 2012 *)

PROG

(Magma) [p: p in PrimesUpTo(16000) | p mod 49 eq 12]; // Vincenzo Librandi, Aug 28 2012

(PARI) is(n)=isprime(n) && n%49==12 \\ Charles R Greathouse IV, Jul 03 2016