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A160762 Convolved with the toothpick sequence A139250 = (2*n - 1): (1, 3, 5, 7,...). 2
1, 0, 2, -2, 2, 2, 2, -6, 2, 2, 2, -2, 6, 6, -2, -14, 2, 2, 2, -2, 6, 6, -2, -10, 6, 6, 2, 2 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

The sequence convolved with (1, 2, 2, 2,...) = A139251, (1, 2, 4, 4, 4, 8, 12,...); i.e. first difference row of the toothpick sequence A139250.

LINKS

Table of n, a(n) for n=1..28.

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. A139250, A139251

Sequence in context: A139516 A225953 A278247 * A112968 A263407 A221838

Adjacent sequences:  A160759 A160760 A160761 * A160763 A160764 A160765

KEYWORD

sign

AUTHOR

Gary W. Adamson, May 25 2009

STATUS

approved

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Last modified December 13 22:07 EST 2018. Contains 318087 sequences. (Running on oeis4.)