login
A267356
Binary representation of the n-th iteration of the "Rule 124" elementary cellular automaton starting with a single ON (black) cell.
1
1, 11, 111, 1011, 11111, 100011, 1100111, 11101011, 101111111, 1110000011, 10110000111, 111110001011, 1000110011111, 11001110100011, 111010111100111, 1011111001101011, 11100011011111111, 101100111100000011, 1111101001100000111, 10001111011100001011
OFFSET
0,2
REFERENCES
S. Wolfram, A New Kind of Science, Wolfram Media, 2002; p. 55.
MATHEMATICA
rule=124; 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. A267355.
Sequence in context: A284541 A267051 A101680 * A215559 A346231 A164553
KEYWORD
nonn,easy
AUTHOR
Robert Price, Jan 13 2016
STATUS
approved