A161829 First differences of A161828.

0, 3, 0, 6, 0, 6, 6, 12, 6

Offset

1,2

Links

Table of n, a(n) for n=1..9.

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. A160120, A161419, A161828, A161837.

Sequence in context: A092731 A348080 A201567 * A290705 A115456 A328788

Adjacent sequences: A161826 A161827 A161828 * A161830 A161831 A161832

Keyword

more,nonn

Author

Omar E. Pol, Jun 21 2009

Status

approved