
0, 1, 2, 4, 6, 4, 10, 12, 22, 4, 10, 20, 30, 12, 34, 44, 78, 4, 10, 20, 30, 20, 50, 60, 110, 12, 34, 68, 102, 44, 122, 156, 278, 4, 10, 20, 30, 20, 50, 60, 110, 20, 50, 100, 150, 60, 170, 220, 390, 12, 34, 68, 102, 68, 170
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OFFSET

0,3


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), 157191. [There is a typo in Theorem 6: (13) should read u(n) = 4.3^(wt(n1)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


CROSSREFS

Cf. A151885A151888, A139250, A139251, A147562, A079314.
Sequence in context: A074320 A014428 A180935 * A278259 A293473 A257080
Adjacent sequences: A151883 A151884 A151885 * A151887 A151888 A151889


KEYWORD

nonn


AUTHOR

N. J. A. Sloane, Jul 23 2009


EXTENSIONS

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


STATUS

approved

