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A159789 a(n) = A159786(n+1)/4. 9
0, 0, 1, 2, 2, 3, 8, 12, 12, 13, 16, 18, 19, 26, 44, 56, 56, 57, 60, 62, 63, 70, 84, 92, 93, 98, 106, 111, 120, 152, 216, 240, 240, 241, 244, 246, 247, 254, 268, 276, 277, 282, 290, 295, 304, 336, 384, 408, 409, 414 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,4

LINKS

Table of n, a(n) for n=0..49.

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

CROSSREFS

Toothpick sequence: A139250.

Cf. A139251, A153000, A159786, A159787, A159788, A159799.

Sequence in context: A091681 A076541 A227380 * A153932 A158763 A001131

Adjacent sequences:  A159786 A159787 A159788 * A159790 A159791 A159792

KEYWORD

nonn

AUTHOR

Omar E. Pol, Apr 28 2009, May 02 2009

EXTENSIONS

More terms from Colin Barker, Apr 19 2015

STATUS

approved

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Last modified December 16 20:51 EST 2018. Contains 318189 sequences. (Running on oeis4.)