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 A196594 #11 Aug 13 2020 14:02:28 %S A196594 4,4,6,6,7,8,8,9,10,10 %N A196594 Maximum number of floors with 4 elevators and s stops. %D A196594 David Rhee and Jerry Lo, Mathematical Wizardy for A Gardener, pp. 165-173. %H A196594 Erich Friedman, <a href="https://erich-friedman.github.io/mathmagic/1109.html">Problem of the month November 2009</a> %K A196594 nonn,more %O A196594 1,1 %A A196594 _Kausthub Gudipati_, Oct 04 2011