A160745 First differences of A160744.

3, 3, 6, 6, 6, 6, 12, 12, 6, 6, 12, 12, 12, 12, 24, 24, 6, 6, 12, 12, 12, 12, 24, 24, 12, 12, 24, 24, 24, 24, 48, 48, 6, 6, 12, 12, 12, 12, 24, 24, 12, 12, 24, 24, 24, 24, 48, 48, 12, 12, 24, 24, 24, 24, 48, 48, 24, 24, 48, 48, 48, 48, 96, 96, 6, 6, 12, 12, 12, 12, 24, 24, 12, 12, 24

Offset

1,1

Links

Table of n, a(n) for n=1..75.

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

Formula

a(n)=3*A060632(n). [From R. J. Mathar, Feb 03 2010]

Crossrefs

Cf. A139251, A151566, A160743, A160744.

Sequence in context: A370291 A072464 A262871 * A105676 A127739 A327142

Adjacent sequences: A160742 A160743 A160744 * A160746 A160747 A160748

Keyword

nonn

Author

Omar E. Pol, May 25 2009

Extensions

Terms beyond a(7) from R. J. Mathar, Feb 03 2010

Status

approved