
0, 0, 0, 1, 2, 2, 4, 9, 12, 12, 14, 18, 20, 22, 32, 47, 54, 54, 56, 60, 62, 64, 74, 88, 94, 96, 104, 114, 120, 134, 170, 209, 224, 224, 226, 230, 232, 234, 244, 258, 264, 266, 274, 284, 290, 304, 340, 378, 392, 394, 402, 412, 418, 432, 466, 500, 514
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OFFSET

0,5


LINKS

Table of n, a(n) for n=0..56.
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


FORMULA

a(n) = A160124(n)/2.  Nathaniel Johnston, Apr 12 2011


CROSSREFS

Cf. A139250, A159786, A159787, A159788, A159789, A160124, A160125, A160127.
Sequence in context: A019822 A281605 A199499 * A257515 A105152 A066346
Adjacent sequences: A160123 A160124 A160125 * A160127 A160128 A160129


KEYWORD

nonn


AUTHOR

Omar E. Pol, May 03 2009


EXTENSIONS

Terms beyond a(10) from Nathaniel Johnston, Apr 12 2011


STATUS

approved

