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 A194697 #15 Sep 26 2015 01:17:13 %S A194697 4,4,8,12,16,16,22,32,26,20,24,40,44,52,48,72,42,20,24 %N A194697 a(n) = 2*A194695(n). %C A194697 Conjecture: number of toothpicks or D-toothpicks added to the structure of A194442 at stage 2^k+n, if k tends to infinity. It appears that rows of A194443 when written as a triangle converge to this sequence. %H A194697 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 A194697 <a href="/index/To#toothpick">Index entries for sequences related to toothpick sequences</a> %e A194697 Written as a triangle: %e A194697 4, %e A194697 4, %e A194697 8, %e A194697 12,16, %e A194697 16,22,32,26, %e A194697 20,24,40,44,52,48,72,42, %e A194697 20,24 %Y A194697 Cf. A152980, A194270, A194442, A194694, A194695, A194696 %K A194697 nonn,more %O A194697 1,1 %A A194697 _Omar E. Pol_, Sep 03 2011