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A160425 a(n) = number of grid points that are covered after n-th rounds of A160120. 2
0, 4, 10, 19, 31, 40 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..5.

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, A147614, A160120, A160121, A160128.

Sequence in context: A057312 A219965 A008038 * A152946 A162505 A025720

Adjacent sequences:  A160422 A160423 A160424 * A160426 A160427 A160428

KEYWORD

more,nonn

AUTHOR

Omar E. Pol, Jun 01 2009

STATUS

approved

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Last modified February 21 12:59 EST 2018. Contains 299411 sequences. (Running on oeis4.)