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A160714 T-toothpick sequence starting at the corner of an infinite square, but with angle = Pi/4. 3
0, 1, 2, 5, 6, 9, 12, 21, 22, 25, 28, 37, 40, 49, 58, 85, 112, 113 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

COMMENTS

The sequence gives the number of T-toothpicks after n rounds.

See A160172 for more information about T-toothpick sequences.

LINKS

Table of n, a(n) for n=0..17.

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, A160172, A160173.

Sequence in context: A267700 A161910 A151920 * A256644 A219764 A286003

Adjacent sequences:  A160711 A160712 A160713 * A160715 A160716 A160717

KEYWORD

more,nonn

AUTHOR

Omar E. Pol, Jun 02 2009

STATUS

approved

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Last modified November 15 15:59 EST 2018. Contains 317239 sequences. (Running on oeis4.)