

A160730


Toothpick sequence starting from a right angle formed by two toothpicks.


5



0, 2, 4, 8, 14, 20, 26, 38, 52, 64, 70, 82, 96, 112, 130, 162, 196, 216, 222, 234, 248, 264, 282, 314, 348, 372, 390, 422, 460, 504, 566, 658, 740, 776, 782, 794, 808, 824, 842, 874, 908, 932, 950, 982, 1020, 1064
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OFFSET

0,2


LINKS

Nathaniel Johnston, Table of n, a(n) for n = 0..255
David Applegate, Omar E. Pol and N. J. A. Sloane, The Toothpick Sequence and Other Sequences from Cellular Automata, Congressus Numerantium, Vol. 206 (2010), 157191. [There is a typo in Theorem 6: (13) should read u(n) = 4.3^(wt(n1)1) for n >= 2.]
N. J. A. Sloane, Catalog of Toothpick and Cellular Automata Sequences in the OEIS
Nathaniel Johnston, C script


CROSSREFS

Cf. A139250, A160736, A160731.
Sequence in context: A248845 A169926 A140164 * A190402 A175300 A316699
Adjacent sequences: A160727 A160728 A160729 * A160731 A160732 A160733


KEYWORD

nonn


AUTHOR

Omar E. Pol, May 25 2009


EXTENSIONS

Terms after a(11) from Nathaniel Johnston, Mar 28 2011


STATUS

approved



