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 A194433 #7 Sep 26 2015 01:17:13 %S A194433 0,4,8,16,16,16,28,48,32,16,32 %N A194433 Number of toothpicks and D-toothpicks added at n-th stage to the structure of A194432. %C A194433 Essentially the first differences of A194432. %H A194433 N. J. A. Sloane, <a href="/wiki/Catalog_of_Toothpick_and_CA_Sequences_in_OEIS">Catalog of Toothpick and Cellular Automata Sequences in the OEIS</a> %H A194433 <a href="/index/To#toothpick">Index entries for sequences related to toothpick sequences</a> %F A194433 Conjecture: a(2^k+1) = 16, if k >= 1 . %Y A194433 Cf. A139251, A194271, A194432, A194435, A194441, A194443. %K A194433 nonn,more %O A194433 0,2 %A A194433 _Omar E. Pol_, Sep 03 2011