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A267511 Binary representation of the n-th iteration of the "Rule 137" elementary cellular automaton starting with a single ON (black) cell. 1
1, 0, 101, 11, 1110111, 11001111, 10100011111, 10111111, 111110001111111, 1111001011111111, 1011100000111111111, 110011101111111111, 11101000110011111111111, 110000101000111111111111, 101001100000101111111111111, 10011100011111111111111 (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
Eric Weisstein's World of Mathematics, Elementary Cellular Automaton
MATHEMATICA
rule=137; 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. A267463.
Sequence in context: A288810 A288896 A290291 * A269503 A067748 A338615
KEYWORD
nonn,easy
AUTHOR
Robert Price, Jan 16 2016
STATUS
approved

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Last modified March 29 04:23 EDT 2024. Contains 371264 sequences. (Running on oeis4.)