A160427 First differences of A160426.

5, 4, 8, 13, 12, 10, 17, 21, 12, 10, 17, 21, 20, 26, 41, 37, 12, 10, 17, 21, 20, 26, 41, 37, 20, 26, 41, 45, 52, 82, 105, 69, 12, 10, 17, 21, 20, 26, 41, 37, 20, 26, 41, 45, 52, 82, 105, 69, 20, 26, 41, 45, 52, 82, 105

Offset

1,1

Links

Table of n, a(n) for n=1..55.

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: A309543 A187891 A086407 * A343244 A215337 A090124

Adjacent sequences: A160424 A160425 A160426 * A160428 A160429 A160430

Keyword

nonn

Author

Omar E. Pol, May 25 2009

Extensions

Terms after a(13) from Nathaniel Johnston, Mar 31 2011

Status

approved