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 A011831 #3 May 16 2003 03:00:00 %S A011831 2,3,5,10,26,96,553,5461,100708,3617645,173567527,6366566540, %T A011831 158639466203,2814676722153,37776715520590,402955577714030, %U A011831 3548682190216501,26572504193848015,173131916047617788 %N A011831 f-vectors for simplicial complexes of dimension at most 6 on at most n-1 vertices. %K A011831 nonn %O A011831 1,1 %A A011831 Svante Linusson (linusson(AT)math.kth.se)