A161216 a(n) = A161210(n)*4.

0, 4, 12, 28, 56, 84, 112

Offset

0,2

Links

Table of n, a(n) for n=0..6.

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, A152980, A153006, A160160, A161210, A161212, A161214, A161217.

Sequence in context: A166019 A184633 A006000 * A085622 A011940 A223764

Adjacent sequences: A161213 A161214 A161215 * A161217 A161218 A161219

Keyword

more,nonn

Author

Omar E. Pol, Jun 06 2009

Status

approved