%I #12 Sep 08 2022 08:45:35
%S 13,67,229,283,337,499,607,661,769,823,877,1039,1093,1201,1471,1579,
%T 1741,2011,2281,2389,2551,2659,2713,2767,3037,3253,3307,3361,3469,
%U 3631,3739,3793,3847,4441,4549,4603,4657,5197,5413,5521,5683,5737,5791,5953,6007
%N Primes congruent to 13 mod 27.
%H Vincenzo Librandi, <a href="/A141956/b141956.txt">Table of n, a(n) for n = 1..1000</a>
%F a(n) ~ 18n log n. - _Charles R Greathouse IV_, Jul 03 2016
%t Select[Range[13, 30000, 27], PrimeQ] (* _Vladimir Joseph Stephan Orlovsky_, Jun 21 2011 *)
%o (Magma) [p: p in PrimesUpTo(7000) | p mod 27 eq 13 ]; // _Vincenzo Librandi_, Aug 16 2012
%o (PARI) is(n)=isprime(n) && n%27==13 \\ _Charles R Greathouse IV_, Jul 03 2016
%Y Cf. A000040, A141957, A141958, A141959.
%K nonn,easy
%O 1,1
%A _N. J. A. Sloane_, Jul 11 2008