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 A215212 #9 Sep 08 2022 08:46:03
%S A215212 2,5,7,19,41,53,73,107,109,211,223,257,277,311,313,347,359,379,449,
%T A215212 461,563,617,619,631,653,719,733,787,821,823,857,937,971,991,1039,
%U A215212 1061,1093,1129,1163,1229,1231,1277,1297,1367,1399,1433,1447,1481,1549,1571
%N A215212 Primes congruent to {2, 5, 7} mod 17.
%H A215212 Vincenzo Librandi, <a href="/A215212/b215212.txt">Table of n, a(n) for n = 1..1000</a>
%t A215212 Select[Prime[Range[1000]],MemberQ[{2,5,7},Mod[#,17]]&]
%o A215212 (Magma) [ p: p in PrimesUpTo(2000) | p mod 17 in {2, 5, 7} ];
%Y A215212 Cf. A000040, A045355, A045357.
%K A215212 nonn,easy
%O A215212 1,1
%A A215212 _Vincenzo Librandi_, Aug 07 2012