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 A215307 #9 Sep 08 2022 08:46:03
%S A215307 2,3,5,29,31,41,53,67,79,83,107,109,131,157,197,211,223,239,263,313,
%T A215307 317,353,367,379,419,421,431,443,457,499,509,521,523,547,577,587,599,
%U A215307 601,613,653,677,691,733,743,757,769,809,811,821,859,863,887,911
%N A215307 Primes congruent to {1, 2, 3, 5} mod 13.
%H A215307 Vincenzo Librandi, <a href="/A215307/b215307.txt">Table of n, a(n) for n = 1..1000</a>
%t A215307 Select[Prime[Range[400]],MemberQ[{1,2,3,5},Mod[#,13]]&]
%o A215307 (Magma) [p: p in PrimesUpTo(1000) | p mod 13 in [1, 2, 3, 5]];
%Y A215307 Cf. A000040, A042998, A045313.
%K A215307 nonn,easy
%O A215307 1,1
%A A215307 _Vincenzo Librandi_, Aug 08 2012