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A160732 Toothpick sequence starting from a T formed by three toothpicks. 4
0, 3, 6, 12, 20, 28, 34, 46, 60, 68, 76, 92, 112, 130, 148, 178, 204, 212, 220, 236, 256, 274, 294, 328, 360, 380, 408, 456, 510, 560, 620, 698, 748, 756, 764, 780, 800, 818, 838, 872, 904, 924, 952, 1000 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Nathaniel Johnston, Table of n, a(n) for n = 0..274

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

Nathaniel Johnston, C script for computing table of terms

CROSSREFS

Cf. A139250, A160732, A160733, A160736, A160738, A160740.

Sequence in context: A218076 A308722 A320192 * A320608 A246147 A066140

Adjacent sequences:  A160729 A160730 A160731 * A160733 A160734 A160735

KEYWORD

nonn

AUTHOR

Omar E. Pol, May 25 2009

EXTENSIONS

Terms after a(9) from Nathaniel Johnston, Mar 30 2011

STATUS

approved

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Last modified December 15 00:30 EST 2019. Contains 329988 sequences. (Running on oeis4.)