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 A151896 Number of new cells turned ON at generation n in cellular automaton described in A151895. 6
 0, 1, 4, 4, 4, 12, 4, 12, 12, 12, 20, 12, 20, 28, 4, 12, 12, 12, 28, 20, 28, 36, 36, 52, 44, 52, 52, 12, 28, 28, 28, 44, 44, 44, 76, 68, 84, 44, 52, 60, 52, 60, 52, 28, 60, 60, 68, 100, 44, 68, 84, 60, 92, 84, 76, 116, 84, 100, 92, 60, 60, 76, 92, 132, 100, 84 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 COMMENTS First differences of A151895. See that entry for much more information. LINKS David Applegate, Table of n, a(n) for n = 0..250 David Applegate, The movie version David Applegate, Illustration of first 10 generations David Applegate, Illustration of first 20 generations David Applegate, Illustration of first 32 generations David Applegate, Illustration of first 64 generations David Applegate, Omar E. Pol and N. J. A. Sloane, The Toothpick Sequence and Other Sequences from Cellular Automata, 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.] N. J. A. Sloane, Illustration of initial terms (concentrating on a 90 degree sector) N. J. A. Sloane, Catalog of Toothpick and Cellular Automata Sequences in the OEIS FORMULA We do not know of a recurrence or generating function. CROSSREFS Cf. A151895, A139250. Sequence in context: A219373 A337132 A151906 * A267191 A170897 A217771 Adjacent sequences:  A151893 A151894 A151895 * A151897 A151898 A151899 KEYWORD nonn AUTHOR David Applegate and N. J. A. Sloane, Jul 30 2009 EXTENSIONS Revised by David Applegate and N. J. A. Sloane, Jan 21 2016. STATUS approved

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Last modified August 1 07:45 EDT 2021. Contains 346384 sequences. (Running on oeis4.)