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A151887 Number of toothpicks turned OFF at generation n in A151885. 2
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, 34, 0, 170, 0, 122, 0, 494, 0, 10, 0, 50, 0, 50, 0, 190, 0, 50, 0, 250, 0, 170, 0, 690, 0, 34, 0, 170, 0, 170, 0, 646, 0, 122, 0, 610, 0, 434, 0, 1762 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,4

LINKS

Nathaniel Johnston, Table of n, a(n) for n = 0..926

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, Catalog of Toothpick and Cellular Automata Sequences in the OEIS

N. J. A. Sloane, Illustration of first 8 generations

FORMULA

a(2n) = 0 for all n >= 0.

CROSSREFS

Cf. A151885-A151888, A139250, A139251, A147562, A079314.

Sequence in context: A299626 A002741 A213322 * A303350 A070681 A228539

Adjacent sequences:  A151884 A151885 A151886 * A151888 A151889 A151890

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Jul 23 2009

EXTENSIONS

Terms after a(8) from Nathaniel Johnston, Apr 02 2011

STATUS

approved

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Last modified October 18 00:09 EDT 2019. Contains 328135 sequences. (Running on oeis4.)