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 A196592 #17 Aug 13 2020 14:02:28 %S A196592 3,3,4,5,5,6,7,7,7,7,8,9,9,9,9,9 %N A196592 Maximum number of floors with n elevators and 3 stops. %D A196592 David Rhee and Jerry Lo, Mathematical Wizardy for A Gardener, pp. 165-173. %H A196592 Erich Friedman, <a href="https://erich-friedman.github.io/mathmagic/1109.html">Problem of the month November 2009</a> %K A196592 nonn,more %O A196592 1,1 %A A196592 _Kausthub Gudipati_, Oct 04 2011 %E A196592 Corrected Name: elevators and stops were interchanged. - _Robert Price_, May 30 2013