A173452 a(n) = A048883(n-1) - A151710(n).

0, 0, 0, 0, 0, 0, 0, 6, 0, 0, 0, 6, -6, 6, 0, 30, 0, 0, 0, 6, -6, 6, 0, 30, -12, 6, 0, 30

Offset

1,8

Comments

It appears that the absolute value of a(n) is a multiple of 6, see A008588. - Omar E. Pol, Dec 06 2013

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

Index entries for sequences related to toothpick sequences

Example

From Omar E. Pol, Dec 06 2013: (Start)
Written as an irregular triangle in which row lengths is A011782 the sequence begins:
0;
0;
0, 0;
0, 0, 0, 6;
0, 0, 0, 6, -6, 6, 0, 30;
0, 0, 0, 6, -6, 6, 0, 30, -12, 6, 0, 30...
(End)

Crossrefs

Cf. A048883, A139250, A139251, A160121, A151710, A173066, A173067, A173068, A173451, A173453.

Sequence in context: A174431 A260712 A173066 * A282212 A074591 A318877

Adjacent sequences: A173449 A173450 A173451 * A173453 A173454 A173455

Keyword

more,sign,tabf

Author

Omar E. Pol, May 29 2010

Status

approved