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 A157989 #21 Aug 20 2021 04:30:18 %S A157989 9,6,7,11,11 %N A157989 The numbers of the jingle for a popular Ontario pizza chain's phone number. %C A157989 Sung as: "nine, six, seven, eleven, eleven, .... ". %C A157989 Jingle first introduced in 1978 and has since become a pop culture item for Canadians. %H A157989 Pizza-Pizza, <a href="https://web.archive.org/web/20120318151250/http://www.pizzapizza.ca/PPLWeb/CommandServlet?command=screenscmd&screenID=about_history&menuId=null">History of the Enterprise</a>. %H A157989 Wikipedia, <a href="http://en.wikipedia.org/wiki/Pizza_Pizza">Pizza Pizza</a>. %H A157989 <a href="/index/So#songs">Index entries for sequences related to songs</a> %Y A157989 Cf. A104175. %K A157989 nonn,dumb,fini,full %O A157989 1,1 %A A157989 Dave [Last name?] (dave(AT)endicott.net), Mar 10 2009