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 A194696 #15 Sep 26 2015 01:17:13 %S A194696 4,4,8,12,16,16,24,26,24,20,32,40,64,40,48,54,40,20,32,48,72,82,96,96, %T A194696 108,68,88,100,160,96,96,110,72,20,32,48,72,82,96,108,136,124,160,160, %U A194696 248,190,208,178,188,88,96,136 %N A194696 a(n) = 2*A194693(n). %C A194696 Conjecture: number of toothpicks or D-toothpicks added to the structure of A194440 at stage 2^k+n, if k tends to infinity. It appears that rows of A194441 when written as a triangle converge to this sequence. %H A194696 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 A194696 <a href="/index/To#toothpick">Index entries for sequences related to toothpick sequences</a> %e A194696 Written as a triangle: %e A194696 4, %e A194696 4, %e A194696 8, %e A194696 12,16, %e A194696 16,24,26,24, %e A194696 20,32,40,64,40,48,54,40, %e A194696 20,32,48,72,82,96,96,108,68,88,100,160,96,96,110,72, %e A194696 20,32,48,72,82,96,108,136,124,160,160,248,190,208,178,... %Y A194696 Cf. A152980, A194270, A194440, A194692, A194693, A194697. %K A194696 nonn,more %O A194696 1,1 %A A194696 _Omar E. Pol_, Sep 03 2011