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 A071197 #3 Oct 15 2013 22:31:22 %S A071197 3,11,13,17,23,29,31,37,41,47,61,71,73,79,89,97,107,113,127,131,137, %T A071197 139,149,151,157,167,173,197,211,223,227,239,251,269,281,283,293,307, %U A071197 311,317,331,349,353,359,379,383,389,397,401,409,419,421,439,443,457 %N A071197 Possible prime values in A071195. %Y A071197 Cf. A071194-A071198. %K A071197 nonn %O A071197 1,1 %A A071197 _Labos Elemer_, May 16 2002