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A299479 Number of toothpicks added at n-th stage to the structure of the cellular automaton of A299478. 5
1, 2, 4, 6, 8, 6, 6, 10, 16, 20, 12, 10, 16, 20, 32, 24, 22, 34, 36, 40, 16, 14, 20, 24, 40, 32, 32, 44, 48, 64, 48, 42, 58, 70, 104, 74, 60, 78, 78, 80, 24, 14, 20, 24, 40, 36, 40, 50, 52, 72 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

The "word" of this cellular automaton is abcbc.

The associated sound to the animation of this cellular automaton could be [tick, tock, tack, tock, tack], [tick, tock, tack, tock, tack], and so on.

For more information about the "word" of a cellular automaton see A296612.

LINKS

Table of n, a(n) for n=1..50.

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

Index entries for sequences related to cellular automata

Index entries for sequences related to toothpick sequences

EXAMPLE

The structure of this irregular triangle is shown below:

   a,  b,  c,  b,  c;

   a,  b,  c,  b,  c;

   a,  b,  c,  b,  c,  a,  b,  c,  b,  c;

   a,  b,  c,  b,  c,  a,  b,  c,  b,  c,  a,  b,  c,  b,  c,   a,  b,  c,  b,  c;

...

So, written as an irregular triangle in which the row lengths are the terms of A011782 multiplied by 5, the sequence begins:

   1,  2,  4,  6,  8;

   6,  6, 10, 16, 20;

  12, 10, 16, 20, 32, 24, 22, 34, 36, 40;

  16, 14, 20, 24, 40, 32, 32, 44, 48, 64, 48, 42, 58, 70, 104, 74, 60, 78, 78, 80;

  24, 14, 20, 24, 40, 36, 40, 50, 52, 72, ...

CROSSREFS

Cf. A299478.

Cf. A160121 (word "a"), A139251 (word "ab"), A296511 (word "abc"), A299477 (word "abcb").

Sequence in context: A116418 A122640 A326352 * A185361 A245186 A230865

Adjacent sequences:  A299476 A299477 A299478 * A299480 A299481 A299482

KEYWORD

nonn,tabf,more

AUTHOR

Omar E. Pol, Feb 11 2018

STATUS

approved

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Last modified June 5 23:10 EDT 2020. Contains 334858 sequences. (Running on oeis4.)