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A160161 First differences of the toothpick numbers A160160. 10
0, 1, 2, 4, 8, 8, 8, 8, 16, 32, 56, 32, 16, 8, 16, 32, 56, 56, 64, 80, 152, 232, 352, 144, 48, 32, 24, 40, 56, 56, 64, 80, 152, 232, 352, 216, 168, 176, 272, 360, 496, 448, 536, 664, 1168, 1488, 2000, 768, 304, 336, 264, 192, 112, 120, 128, 112, 168, 240, 352, 216, 168, 176, 272, 360, 496, 448, 536, 664, 1168, 1488, 2000, 984, 656, 736, 928, 928, 928, 808, 1008 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

COMMENTS

Number of toothpicks added at n-th stage to the three-dimensional toothpick structure of A160160.

LINKS

Table of n, a(n) for n=0..78.

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

Index entries for sequences related to toothpick sequences

EXAMPLE

Array begins:

===================

.. x ... y ... z ..

===================

.. ..... 0,... 1,

.. 2,... 4,... 8,

.. 8,... 8,... 8,

.. 16,.. 32,.. 56,

.. 32,.. 16,.. 8,

.. 16,.. 32,.. 56,

.. 56,.. 64,.. 80,

.. 152,. 232,. 352,

.. 144,. 48,.. 32,

CROSSREFS

Cf. A160160, A139250, A139251, A160120, A160121, A160171, A170875.

Sequence in context: A197000 A198428 A083550 * A129279 A008496 A178573

Adjacent sequences:  A160158 A160159 A160160 * A160162 A160163 A160164

KEYWORD

nonn

AUTHOR

Omar E. Pol, May 03 2009, May 06 2009, Dec 21 2010

EXTENSIONS

Extended with C++ program and illustrations (see A160160) by R. J. Mathar, Jan 09 2010

STATUS

approved

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Last modified September 20 16:05 EDT 2017. Contains 292276 sequences.