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%I #14 Sep 08 2022 08:45:35
%S 3,53,103,353,503,653,853,953,1103,1153,1303,1453,1553,1753,2003,2053,
%T 2153,2203,2503,2753,2803,2903,2953,3203,3253,3803,3853,4003,4153,
%U 4253,4603,4703,4903,5003,5153,5303,5503,5653,5903,5953,6053,6203,6353,6553,6653
%N Primes congruent to 3 mod 25.
%H Vincenzo Librandi, <a href="/A141929/b141929.txt">Table of n, a(n) for n = 1..1000</a>
%F a(n) ~ 20n log n. - _Charles R Greathouse IV_, Jul 02 2016
%t Select[Prime[Range[1000]],Mod[#,25]==3&] (* _Harvey P. Dale_, Dec 08 2010 *)
%o (Magma) [p: p in PrimesUpTo(8000) | p mod 25 eq 3 ]; // _Vincenzo Librandi_, Aug 16 2012
%o (PARI) is(n)=isprime(n) && n%25==3 \\ _Charles R Greathouse IV_, Jul 02 2016
%Y Cf. A000040.
%K nonn,easy
%O 1,1
%A _N. J. A. Sloane_, Jul 11 2008