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A267512 Decimal representation of the n-th iteration of the "Rule 137" elementary cellular automaton starting with a single ON (black) cell. 1
1, 0, 5, 3, 119, 207, 1311, 191, 31871, 62207, 377343, 211967, 7628799, 12750847, 87056383, 5128191, 2115600383, 4188078079, 25268453375, 15329394687, 506978631679, 866512797695, 5511502102527, 1050064977919, 138276212047871, 267395251830783 (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]], 2], {k, 1, rows}] (* Decimal Representation of Rows *)
CROSSREFS
Cf. A267463.
Sequence in context: A255599 A180403 A343582 * A230389 A048885 A264738
KEYWORD
nonn,easy
AUTHOR
Robert Price, Jan 16 2016
STATUS
approved

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Last modified March 3 17:50 EST 2024. Contains 370512 sequences. (Running on oeis4.)