A151777 First differences of A151776.

1, 12, 12, 84, 12, 84, 180, 420, 12, 84, 180, 564, 540, 420, 1116, 2028, 108, 84, 180, 564, 540, 564, 1500, 3276, 1836, 420, 1116, 2940, 4380, 2724, 6252, 10212, 1284, 372, 420, 612, 540, 564, 1500, 3276

Offset

1,2

Links

Table of n, a(n) for n=1..40.

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. A151776, A151778.

Sequence in context: A161196 A328531 A111306 * A143478 A219400 A219448

Adjacent sequences: A151774 A151775 A151776 * A151778 A151779 A151780

Keyword

nonn

Author

N. J. A. Sloane, Jun 24 2009

Extensions

Terms after a(30) from Nathaniel Johnston, Mar 27 2011

Status

approved