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%I #11 Feb 24 2021 02:48:19
%S 0,1,2,4,4,4,8,8,4,8,12,12,16,12,24,20,12,8,12,20,24,20,28,28,32,32,
%T 36,28,32,24,40,44,16,16,32,36,32,20,32,40,48,52,72,48,64,60,80,56,48,
%U 40,64,64,72,44,68,64,68,72,84,84,108,80,96,84,32,40,64
%N a(n) = A172305(n)/2.
%H Robert Price, <a href="/A172307/b172307.txt">Table of n, a(n) for n = 0..202</a>
%H David Applegate, Omar E. Pol and N. J. A. Sloane, <a href="/A000695/a000695_1.pdf">The Toothpick Sequence and Other Sequences from Cellular Automata</a>, Congressus Numerantium, Vol. 206 (2010), 157-191. [There is a typo in Theorem 6: (13) should read u(n) = 4.3^(wt(n-1)-1) for n >= 2.]
%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>
%Y Cf. A139250, A172304, A172305, A172306, A172308, A172309, A172310, A172311, A172312, A172313.
%K more,nonn
%O 0,3
%A _Omar E. Pol_, Feb 06 2010
%E a(14)-a(66) from _Robert Price_, Jun 17 2019