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 A309863 #9 Aug 21 2019 17:36:30 %S A309863 1,1,1,1,1,1,1,1,1,2,11,1018997864, %T A309863 3517726593606526072882013063011594224625680712384971214848 %N A309863 Number of 9-uniform hypergraphs on n unlabeled nodes. %H A309863 Alois P. Heinz, <a href="/A309863/b309863.txt">Table of n, a(n) for n = 0..14</a> %H A309863 Wikipedia, <a href="https://en.wikipedia.org/wiki/Hypergraph">Hypergraph</a> %Y A309863 Column k=9 of A309858. %K A309863 nonn %O A309863 0,10 %A A309863 _Alois P. Heinz_, Aug 20 2019