A160159 First differences of A160158.

2, 2, 4, 8, 8, 4, 8, 12, 8, 8, 16, 24, 20, 12, 20, 20, 8, 8, 16, 24, 20, 16, 28, 32, 24, 32, 56, 68, 52, 40, 52, 36, 8, 8, 16, 24, 20, 16, 28, 32, 24, 32, 56, 68, 52, 44, 60, 48, 24, 32, 56, 68, 56, 60, 88, 88, 80, 120, 180, 188, 144, 128, 132, 68, 8, 8, 16, 24, 20, 16, 28, 32, 24

Offset

1,1

Links

Table of n, a(n) for n=1..73.

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, A160158, A160162, A160163.

Sequence in context: A048572 A337561 A121173 * A283241 A101651 A325880

Adjacent sequences: A160156 A160157 A160158 * A160160 A160161 A160162

Keyword

nonn

Author

Omar E. Pol, May 29 2009

Extensions

Extended beyond a(13) by R. J. Mathar, Jun 01 2009

Status

approved