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A175098 Number of lattice points covered at the n-th stage of the leftist toothpicks A151566 4
0, 3, 5, 9, 12, 16, 20, 26, 31, 35, 39, 45, 51, 59, 67, 79, 88, 92, 96, 102, 108, 116, 124, 136, 146, 154, 162, 174, 186, 202, 218, 242, 259, 263, 267, 273, 279, 287, 295, 307, 317, 325, 333, 345, 357, 373, 389, 413, 431, 439, 447, 459, 471, 487, 503, 527, 547 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

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, Congressus Numerantium, Vol. 206 (2010), 157-191. [There is a typo in Theorem 6: (13) should read u(n) = 4.3^(wt(n-1)-1) for n >= 2.]

N. J. A. Sloane, Catalog of Toothpick and Cellular Automata Sequences in the OEIS

CROSSREFS

Cf. A147614.

Sequence in context: A086845 A243205 A259368 * A242067 A127722 A234813

Adjacent sequences:  A175095 A175096 A175097 * A175099 A175100 A175101

KEYWORD

nonn

AUTHOR

R. J. Mathar, Feb 04 2010

STATUS

approved

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Last modified January 17 19:58 EST 2019. Contains 319251 sequences. (Running on oeis4.)