A141930 - OEIS

A141930

Primes congruent to 4 mod 25.

29, 79, 179, 229, 379, 479, 829, 929, 1129, 1229, 1279, 1429, 1579, 1879, 1979, 2029, 2129, 2179, 2579, 2729, 2879, 3079, 3229, 3329, 3529, 3779, 3929, 4079, 4129, 4229, 4679, 4729, 5179, 5279, 5479, 5779, 5879, 6029, 6079, 6229, 6329, 6379, 6529, 6679

(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) ~ 20n log n. - Charles R Greathouse IV, Jul 02 2016

MATHEMATICA

Select[Range[4, 20000, 25], PrimeQ] (* Vladimir Joseph Stephan Orlovsky, Jun 18 2011 *)

PROG

(Magma) [p: p in PrimesUpTo(8000) | p mod 25 eq 4 ]; // Vincenzo Librandi, Aug 16 2012

(PARI) is(n)=isprime(n) && n%25==4 \\ Charles R Greathouse IV, Jul 02 2016