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A170859 a(0) = 1, a(1) = 0; a(2^i + j) = 3a(j) + 2a(j + 1) for 0 <= j < 2^i. 0
1, 0, 3, 6, 3, 6, 21, 24, 3, 6, 21, 24, 21, 60, 111, 78, 3, 6, 21, 24, 21, 60, 111, 78, 21, 60, 111, 114, 183, 402, 489, 240, 3, 6, 21, 24, 21, 60, 111, 78, 21, 60, 111, 114, 183, 402, 489, 240, 21, 60, 111, 114, 183, 402, 489, 276, 183, 402, 561, 708, 1353, 2184, 1947, 726, 3 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..64.

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

Sequence in context: A182412 A038138 A010704 * A123146 A016661 A201143

Adjacent sequences:  A170856 A170857 A170858 * A170860 A170861 A170862

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Jan 02 2010

STATUS

approved

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Last modified February 25 13:30 EST 2018. Contains 299654 sequences. (Running on oeis4.)