%I #13 Sep 08 2022 08:45:35
%S 59,109,359,409,509,659,709,809,859,1009,1109,1259,1409,1459,1559,
%T 1609,1709,1759,2309,2459,2609,2659,2909,3109,3209,3259,3359,3559,
%U 3659,3709,4159,4259,4409,4759,4909,5009,5059,5209,5309,5659,6359,6659,6709,6959,7109
%N Primes congruent to 9 mod 25.
%H Vincenzo Librandi, <a href="/A141934/b141934.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[Range[9, 20000, 25], PrimeQ] (* _Vladimir Joseph Stephan Orlovsky_, Jun 18 2011 *)
%o (Magma) [p: p in PrimesUpTo(8000) | p mod 25 eq 9 ]; // _Vincenzo Librandi_, Aug 16 2012
%o (PARI) is(n)=isprime(n) && n%25==9 \\ _Charles R Greathouse IV_, Jul 02 2016
%Y Cf. A000040.
%K nonn,easy
%O 1,1
%A _N. J. A. Sloane_, Jul 11 2008