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 A107432 #20 Dec 08 2018 20:38:05 %S A107432 1,1,4,4,7,8,10,11,13 %N A107432 Column 3 of array in A107431. %H A107432 Ed Pegg Jr., <a href="http://www.mathpuzzle.com/MAA/54-Golf%20Tournaments/mathgames_08_14_07.html">Social Golfer Problem</a> %Y A107432 Cf. A107431. %K A107432 nonn,more %O A107432 1,3 %A A107432 _N. J. A. Sloane_, May 28 2005 %E A107432 a(1) and a(8)-a(9) from _Floris P. van Doorn_, Aug 22 2018