A161834 a(n) = A161828(n)/3.

0, 0, 1, 1, 3, 3, 5, 7, 11, 13

Offset

0,5

Links

Table of n, a(n) for n=0..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, A161422, A161828, A161838.

Sequence in context: A128424 A129758 A176347 * A141867 A163646 A323529

Adjacent sequences: A161831 A161832 A161833 * A161835 A161836 A161837

Keyword

more,nonn

Author

Omar E. Pol, Jun 21 2009

Status

approved