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 A215213 #7 Sep 08 2022 08:46:03
%S A215213 2,5,7,43,59,83,97,157,173,197,211,233,271,311,347,349,401,439,461,
%T A215213 463,499,577,613,653,691,727,743,857,881,919,971,1009,1031,1033,1069,
%U A215213 1109,1123,1223,1237,1259,1297,1373,1427,1451,1487,1489,1579,1601,1693
%N A215213 Primes congruent to {2, 5, 7} mod 19.
%H A215213 Vincenzo Librandi, <a href="/A215213/b215213.txt">Table of n, a(n) for n = 1..1000</a>
%t A215213 Select[Prime[Range[1000]],MemberQ[{2,5,7},Mod[#,19]]&]
%o A215213 (Magma) [ p: p in PrimesUpTo(2000) | p mod 19 in {2, 5, 7} ];
%Y A215213 Cf. A000040, A045355, A045357.
%K A215213 nonn,easy
%O A215213 1,1
%A A215213 _Vincenzo Librandi_, Aug 07 2012