A160762 Convolved with the toothpick sequence A139250 = (2*n - 1): (1, 3, 5, 7, ...).

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

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,more

Author

Gary W. Adamson, May 25 2009

Status

approved