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A151554 G.f.: (1 + 2x) * Prod_{ n >= 1} (1 + x^(2^n-1) + x^(2^n)). 3
1, 3, 3, 3, 4, 6, 5, 3, 4, 6, 6, 7, 10, 11, 7, 3, 4, 6, 6, 7, 10, 11, 8, 7, 10, 12, 13, 17, 21, 18, 9, 3, 4, 6, 6, 7, 10, 11, 8, 7, 10, 12, 13, 17, 21, 18, 10, 7, 10, 12, 13, 17, 21, 19, 15, 17, 22, 25, 30, 38, 39, 27, 11, 3, 4, 6, 6, 7, 10, 11, 8, 7, 10, 12, 13, 17, 21, 18, 10, 7, 10, 12, 13 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

N. J. A. Sloane, Table of n, a(n) for n = 0..16383

David Applegate, Omar E. Pol and N. J. A. Sloane, The Toothpick Sequence and Other Sequences from Cellular Automata

N. J. A. Sloane, Catalog of Toothpick and Cellular Automata Sequences in the OEIS

CROSSREFS

Cf. A139250, A151550, A151551, A151552, A151553.

Sequence in context: A090903 A022878 A022877 * A221028 A011978 A167025

Adjacent sequences:  A151551 A151552 A151553 * A151555 A151556 A151557

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, May 20 2009

STATUS

approved

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Last modified February 24 07:30 EST 2018. Contains 299597 sequences. (Running on oeis4.)