A142170 - OEIS

A142170

Primes congruent to 19 mod 39.

19, 97, 331, 409, 487, 643, 877, 1033, 1423, 1579, 1657, 2203, 2281, 2437, 2593, 2671, 2749, 3061, 3217, 3373, 3529, 3607, 3919, 4153, 4231, 4621, 4933, 5011, 5167, 5323, 5479, 5557, 5791, 5869, 6337, 6571, 6883, 6961, 7039, 7351, 7507, 7741, 8053, 8209

(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) ~ 24n log n. - Charles R Greathouse IV, Jul 03 2016

MATHEMATICA

Select[Prime[Range[1100]], Mod[#, 39]==19&] (* Harvey P. Dale, Mar 30 2011 *)

Select[Prime[Range[3000]], MemberQ[{19}, Mod[#, 39]]&] (* Vincenzo Librandi, Aug 20 2012 *)

PROG

(Magma) [p: p in PrimesUpTo(9000) | p mod 39 eq 19 ]; // Vincenzo Librandi, Aug 20 2012