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 A215391 #5 Sep 08 2022 08:46:03
%S A215391 2,41,53,67,79,131,157,197,223,313,353,379,431,443,457,509,521,547,
%T A215391 587,599,613,677,691,743,769,821,859,911,937,977,1093,1171,1223,1237,
%U A215391 1249,1289,1301,1327,1367,1471,1483,1523,1549,1601,1613,1627,1783,1847
%N A215391 Primes congruent to {1, 2} mod 13.
%H A215391 Vincenzo Librandi, <a href="/A215391/b215391.txt">Table of n, a(n) for n = 1..1000</a>
%t A215391 Select[Prime[Range[300]],MemberQ[{1,2},Mod[#,13]]&]
%o A215391 (Magma) [p: p in PrimesUpTo(2000) | p mod 13 in [1, 2]];
%Y A215391 Cf. A000040, A045344, A045372,
%K A215391 nonn,easy
%O A215391 1,1
%A A215391 _Vincenzo Librandi_, Aug 10 2012