login
A267578
Decimal representation of the n-th iteration of the "Rule 167" elementary cellular automaton starting with a single ON (black) cell.
1
1, 6, 26, 110, 426, 1790, 6906, 28398, 109226, 458750, 1769466, 7274478, 27983786, 117374718, 452655866, 1861152494, 7158278826, 30064771070, 115964116986, 476741369838, 1833951035306, 7692286426878, 29665339112186, 121972776234734, 469126392818346
OFFSET
0,2
REFERENCES
S. Wolfram, A New Kind of Science, Wolfram Media, 2002; p. 55.
MATHEMATICA
rule=167; 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. A267576.
Sequence in context: A020989 A079675 A113991 * A255467 A145374 A289789
KEYWORD
nonn,easy
AUTHOR
Robert Price, Jan 17 2016
STATUS
approved