

A194435


Number of toothpicks or Dtoothpicks added at nth stage to the structure of A194434.


5



0, 4, 8, 16, 16, 16, 32, 44, 32, 16, 32, 64, 96, 48, 80, 100, 64, 16, 32, 64, 96, 112, 144, 168, 176, 80, 96, 160, 256, 128, 176, 212, 128, 16, 32, 64, 96, 112, 144, 176, 208, 168, 192, 240, 400, 272, 336, 332, 336, 112, 96, 176, 288, 336, 416, 464
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OFFSET

0,2


COMMENTS

Essentially the first differences of A194434.
First differs from A221528 at a(13).  Omar E. Pol, Mar 23 2013


LINKS

Table of n, a(n) for n=0..55.
N. J. A. Sloane, Catalog of Toothpick and Cellular Automata Sequences in the OEIS
Index entries for sequences related to toothpick sequences


FORMULA

a(n) = 4*A194445(n).
Conjecture: a(2^k+1) = 16, if k >= 1.


EXAMPLE

From Omar E. Pol, Mar 23 2013 (Start):
When written as an irregular triangle begins:
0;
4;
8;
16,16;
16,32,44,32;
16,32,64,96,48,80,100,64;
16,32,64,96,112,144,168,176,80,96,160,256,128,176,212,128;
16,32,64,96,112,144,176,208,168,192,240,400,272,336,332,336,112,96,176,288,336,416,464,528,216,224,368,576,288,368, 436,256;
(End)


CROSSREFS

Row lengths give 1 together with A011782.
Cf. A139251, A194271, A194433, A194434, A194441, A194443, A194445, A212009, A221528.
Sequence in context: A045534 A194433 A221565 * A221528 A166634 A189007
Adjacent sequences: A194432 A194433 A194434 * A194436 A194437 A194438


KEYWORD

nonn,tabf


AUTHOR

Omar E. Pol, Sep 03 2011


EXTENSIONS

More terms from Omar E. Pol, Mar 23 2013


STATUS

approved



