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 A222786 #24 Aug 11 2021 11:00:38 %S A222786 2,3,4,6,8,12,18,30,54,156,270,411,870,1320,2268,4050,8190 %N A222786 a(n) = A222785(n)/A211202(n). %C A222786 a(n) = A222785(n)/A211202(n). %H A222786 Raphie Frank, <a href="/A222786/a222786.txt">Comments on this sequence</a> %Y A222786 Cf. A211202, A222785. %K A222786 nonn,more %O A222786 1,1 %A A222786 _Raphie Frank_, Mar 05 2013