Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).
%I #13 Feb 24 2021 02:48:18
%S 0,0,0,2,0,10,0,10,0,38,0,10,0,50,0,34,0,138,0,10,0,50,0,50,0,190,0,
%T 34,0,170,0,122,0,494,0,10,0,50,0,50,0,190,0,50,0,250,0,170,0,690,0,
%U 34,0,170,0,170,0,646,0,122,0,610,0,434,0,1762
%N Number of toothpicks turned OFF at generation n in A151885.
%H Nathaniel Johnston, <a href="/A151887/b151887.txt">Table of n, a(n) for n = 0..926</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>
%H N. J. A. Sloane, <a href="/A151885/a151885.pdf">Illustration of first 8 generations</a>
%F a(2n) = 0 for all n >= 0.
%Y Cf. A151885-A151888, A139250, A139251, A147562, A079314.
%K nonn
%O 0,4
%A _N. J. A. Sloane_, Jul 23 2009
%E Terms after a(8) from _Nathaniel Johnston_, Apr 02 2011