A170894 - OEIS

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A170894

Similar to A160406, always staying outside the wedge, but starting with a horizontal toothpick whose endpoint touches the vertex of the wedge.

1

0, 1, 2, 4, 7, 10, 13, 19, 27, 33, 37

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,3

LINKS

Table of n, a(n) for n=0..10.

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

Sequence in context: A173537 A049983 A168112 * A151986 A378244 A287522

Adjacent sequences: A170891 A170892 A170893 * A170895 A170896 A170897

KEYWORD

nonn,more

AUTHOR

Omar E. Pol, Jan 09 2010

STATUS

approved