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A267586
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Decimal representation of the n-th iteration of the "Rule 169" elementary cellular automaton starting with a single ON (black) cell.
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1
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1, 0, 5, 7, 111, 191, 1279, 511, 31743, 61439, 376831, 458751, 7077887, 11534335, 79691775, 16777215, 2113929215, 4160749567, 25232932863, 32212254719, 472446402559, 790273982463, 5360119185407, 1649267441663, 134140418588671, 250688651132927
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listen;
history;
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internal format)
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OFFSET
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0,3
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REFERENCES
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S. Wolfram, A New Kind of Science, Wolfram Media, 2002; p. 55.
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LINKS
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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
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MATHEMATICA
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rule=169; 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 *)
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CROSSREFS
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Cf. A264442.
Sequence in context: A088270 A259496 A338525 * A224507 A065927 A217726
Adjacent sequences: A267583 A267584 A267585 * A267587 A267588 A267589
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KEYWORD
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nonn,easy
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AUTHOR
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Robert Price, Jan 18 2016
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STATUS
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approved
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