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A267441
Decimal representation of the n-th iteration of the "Rule 129" elementary cellular automaton starting with a single ON (black) cell.
1
1, 0, 4, 0, 124, 112, 1612, 0, 32764, 32752, 425932, 32512, 8289532, 7893232, 107367628, 0, 2147483644, 2147483632, 27917287372, 2147483392, 543313362172, 517543555312, 7037303901388, 2147418112, 140731045707772, 140705275117552, 1829477823610828
OFFSET
0,3
REFERENCES
S. Wolfram, A New Kind of Science, Wolfram Media, 2002; p. 55.
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]], 2], {k, 1, rows}] (* Decimal Representation of Rows *)
CROSSREFS
Cf. A267417.
Sequence in context: A013037 A129814 A129825 * A264883 A298447 A138734
KEYWORD
nonn,easy
AUTHOR
Robert Price, Jan 15 2016
STATUS
approved