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A267440 Binary representation of the n-th iteration of the "Rule 129" elementary cellular automaton starting with a single ON (black) cell. 1
1, 0, 100, 0, 1111100, 1110000, 11001001100, 0, 111111111111100, 111111111110000, 1100111111111001100, 111111100000000, 11111100111110011111100, 11110000111000011110000, 110011001100100110011001100, 0, 1111111111111111111111111111100 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

REFERENCES

S. Wolfram, A New Kind of Science, Wolfram Media, 2002; p. 55.

LINKS

Robert Price, Table of n, a(n) for n = 0..1000

Eric Weisstein's World of Mathematics, Elementary Cellular Automaton

S. Wolfram, A New Kind of Science

Index entries for sequences related to cellular automata

Index to Elementary Cellular Automata

MATHEMATICA

rule=129; rows=20; ca=CellularAutomaton[rule, {{1}, 0}, rows-1, {All, All}]; (* Start with single black cell *) catri=Table[Take[ca[[k]], {rows-k+1, rows+k-1}], {k, 1, rows}]; (* Truncated list of each row *) Table[FromDigits[catri[[k]]], {k, 1, rows}]   (* Binary Representation of Rows *)

CROSSREFS

Cf. A267417.

Sequence in context: A283915 A284184 A283066 * A154230 A173183 A172179

Adjacent sequences:  A267437 A267438 A267439 * A267441 A267442 A267443

KEYWORD

nonn,easy

AUTHOR

Robert Price, Jan 15 2016

STATUS

approved

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Last modified August 20 08:27 EDT 2019. Contains 326143 sequences. (Running on oeis4.)