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 A357002 #6 Sep 17 2022 08:51:38 %S A357002 8,16,18,24,25,27 %N A357002 Numbers k such that A357001(k) > 0. %C A357002 9*m is a term for all m >= 2 (Hladnik, Marušič, and Pisanski, 2002). %H A357002 Milan Hladnik, Dragan Marušič, and Tomaž Pisanski, <a href="https://doi.org/10.1016/S0012-365X(01)00064-4">Cyclic Haar graphs</a>, Discrete Mathematics 244 (2002), 137-152. %Y A357002 Cf. A357000, A357001. %K A357002 nonn,more %O A357002 1,1 %A A357002 _Pontus von Brömssen_, Sep 08 2022