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%I #12 Sep 08 2022 08:45:35
%S 43,193,293,443,593,643,743,1093,1193,1493,1543,1693,1993,2143,2243,
%T 2293,2393,2543,2593,2693,2843,3343,3593,3643,3793,3943,4093,4243,
%U 4493,4643,4793,4943,4993,5393,5443,5693,5743,5843,6043,6143,6343,6793,7043,7193
%N Primes congruent to 18 mod 25.
%H Vincenzo Librandi, <a href="/A141941/b141941.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[18, 20000, 25], PrimeQ] (* _Vladimir Joseph Stephan Orlovsky_, Jun 15 2011 *)
%o (Magma) [p: p in PrimesUpTo(8000) | p mod 25 eq 18 ]; // _Vincenzo Librandi_, Aug 16 2012
%o (PARI) is(n)=isprime(n) && n%25==18 \\ _Charles R Greathouse IV_, Jul 02 2016
%Y Cf. A000040.
%K nonn,easy
%O 1,1
%A _N. J. A. Sloane_, Jul 11 2008
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