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 A072036 #10 Feb 28 2020 01:30:04 %S A072036 1,30,2,29,3,28,4,567,888,887,886,1253,5,24,376,23,575,22,374,6 %N A072036 An unknown sequence. %C A072036 There is some explanation of this sequence toward the end of the page in the rec.humor discussion group. - Max Kalashnikov (mmt(AT)rahul.net), Feb 10 2008 %H A072036 Internet Oracle, <a href="http://cgi.cs.indiana.edu/~oracle/digest.cgi?N=1273#1273-02">TIO</a> %H A072036 Rec.humor, <a href="http://web.archive.org/web/20060323165843/http://www.henriettesherbal.com/rhod/2002/jul02-b.html">rec.humor.oracle.d best-of</a> %K A072036 nonn,unkn %O A072036 0,2 %A A072036 _Michael Hamm_, Jul 31 2002