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%I #11 Feb 24 2021 02:48:18
%S 1,2,4,8,12,16,28,32,36,40,60,88,92,112,140,208,256,260,296,364,488,
%T 672,704,708,744,956,1216,1648,2048,2052,2096,2108,2396,3128,4080,
%U 5344,5952,5956,6000,6300,7920,10336,13504,16640,16644,16688,16696,16988,17100,18612,20040
%N Records in A139251.
%C Excluding the initial 1 and 2, this sequence also gives the records in A147646. - Nathaniel Johnston, Apr 10 2011
%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. A139251, A139252, A139560. Toothpick sequence: A139250.
%Y Cf. A052184.
%K nonn
%O 1,2
%A _Omar E. Pol_, Dec 15 2008, Dec 20 2008
%E a(18) - a(51) from _Nathaniel Johnston_, Apr 10 2011
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