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 A034384 #9 Aug 19 2013 07:00:19 %S A034384 1,2,5,22,428 %N A034384 Number of two-state cellular automaton rules on a (2n+1)-site neighborhood that conserve the number of 1's. %C A034384 Found by semi-brute force search. %D A034384 C. Moore and T. Boykett, Conserved Quantities in Cellular Automata. %H A034384 Cris Moore, <a href="http://www.santafe.edu/~moore">Homepage</a> %H A034384 <a href="/index/Ce#cell">Index entries for sequences related to cellular automata</a> %K A034384 nonn %O A034384 1,2 %A A034384 Cris Moore (moore(AT)santafe.edu)