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A160726 a(n) = A160714(n)*4. 2
0, 4, 8, 20, 24, 36, 48, 84, 88 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

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

See A160172 and A160714 for more information about T-toothpick sequences.

LINKS

Table of n, a(n) for n=0..8.

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, A160714, A160716, A160724.

Sequence in context: A006580 A061814 A087254 * A191483 A062717 A084922

Adjacent sequences:  A160723 A160724 A160725 * A160727 A160728 A160729

KEYWORD

more,nonn

AUTHOR

Omar E. Pol, Jun 02 2009

STATUS

approved

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Last modified February 18 02:20 EST 2018. Contains 299297 sequences. (Running on oeis4.)