This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A215131 #8 Sep 08 2022 08:46:03
%S A215131 3,5,19,29,31,71,83,97,107,109,149,211,227,239,263,317,331,367,383,
%T A215131 409,419,421,461,487,499,523,577,601,617,643,653,733,757,773,809,811,
%U A215131 863,877,887,929,941,967,991,1019,1033,1069,1097,1123,1163,1201,1277,1279
%N A215131 Primes congruent to {3, 5, 6} mod 13.
%H A215131 Vincenzo Librandi, <a href="/A215131/b215131.txt">Table of n, a(n) for n = 1..1000</a>
%t A215131 Select[Prime[Range[800]],MemberQ[{3, 5, 6},Mod[#,13]]&]
%o A215131 (Magma) [p: p in PrimesUpTo(1500) | p mod 13 in [3, 5, 6]];
%Y A215131 Cf. A000040, A003625.
%K A215131 nonn,easy
%O A215131 1,1
%A A215131 _Vincenzo Librandi_, Aug 04 2012