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A151693 G.f.: Prod_{ k >= 0 } (1 + 2*x^(2^k-1) + 2*x^(2^k)). 10
3, 8, 10, 10, 22, 36, 28, 14, 22, 36, 40, 64, 116, 128, 72, 22, 22, 36, 40, 64, 116, 128, 84, 72, 116, 152, 208, 360, 488, 400, 176, 38, 22, 36, 40, 64, 116, 128, 84, 72, 116, 152, 208, 360, 488, 400, 188, 88, 116, 152, 208, 360, 488, 424, 312, 376, 536, 720, 1136, 1696, 1776 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..60.

David Applegate, Omar E. Pol and N. J. A. Sloane, The Toothpick Sequence and Other Sequences from Cellular Automata

N. J. A. Sloane, Catalog of Toothpick and Cellular Automata Sequences in the OEIS

EXAMPLE

Contribution from Omar E. Pol, Jun 09 2009: (Start)

Triangle begins:

..3;

..8,10;

.10,22,36,28;

.14,22,36,40,64,116,128,72;

.22,22,36,40,64,116,128,84,72,116,152,208,360,488,400,176;

.38,22,36,40,64,116,128,84,72,116,152,208,360,488,400,188,88,116,152,208,...

(End)

CROSSREFS

For generating functions of the form Prod_{k>=c} (1+a*x^(2^k-1)+b*x^2^k)) for the following values of (a,b,c) see: (1,1,0) A160573, (1,1,1) A151552, (1,1,2) A151692, (2,1,0) A151685, (2,1,1) A151691, (1,2,0) A151688 and A152980, (1,2,1) A151550, (2,2,0) A151693, (2,2,1) A151694

Cf. A000079. [From Omar E. Pol, Jun 09 2009]

Sequence in context: A067569 A127518 A176118 * A007284 A080892 A177091

Adjacent sequences:  A151690 A151691 A151692 * A151694 A151695 A151696

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Jun 04 2009

STATUS

approved

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Last modified September 24 07:30 EDT 2018. Contains 315308 sequences. (Running on oeis4.)