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 A267194 #14 Dec 23 2024 14:53:44 %S A267194 0,1,4,12,20,30,46,72,98,124,150,176,314,408 %N A267194 Indices of zeros (winning positions) in A046695 (Sprague-Grundy values for the game Couples-are-Forever). %H A267194 Martha Łącka and Mateusz Łącki, <a href="http://www.deltami.edu.pl/temat/matematyka/gry_zagadki_paradoksy/2014/05/31/Gra_Grim/">Gra Grim i twierdzenie Sprague’a-Grundy’ego</a> (2014). %H A267194 Allan Wechsler, <a href="https://web.archive.org/web/*/http://list.seqfan.eu/oldermail/seqfan/2016-January/015973.html">Posting to Sequence Fans Mailing List</a>, Jan 20 2016. %Y A267194 Cf. A046695. %K A267194 nonn,more %O A267194 1,3 %A A267194 _N. J. A. Sloane_, Jan 26 2016