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%I #15 Sep 26 2015 01:17:13
%S 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 108,68,88,100,160,96,96,110,72,20,32,48,72,82,96,108,136,124,160,160,
%U 248,190,208,178,188,88,96,136
%N a(n) = 2*A194693(n).
%C 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 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 <a href="/index/To#toothpick">Index entries for sequences related to toothpick sequences</a>
%e Written as a triangle:
%e 4,
%e 4,
%e 8,
%e 12,16,
%e 16,24,26,24,
%e 20,32,40,64,40,48,54,40,
%e 20,32,48,72,82,96,96,108,68,88,100,160,96,96,110,72,
%e 20,32,48,72,82,96,108,136,124,160,160,248,190,208,178,...
%Y Cf. A152980, A194270, A194440, A194692, A194693, A194697.
%K nonn,more
%O 1,1
%A _Omar E. Pol_, Sep 03 2011