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A194435 Number of toothpicks or D-toothpicks added at n-th 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 (list; graph; refs; listen; history; text; internal format)
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 A312759 A312760

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

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Last modified October 17 01:55 EDT 2018. Contains 316275 sequences. (Running on oeis4.)