A267147 Decimal representation of the n-th iteration of the "Rule 105" elementary cellular automaton starting with a single ON (black) cell.

1, 0, 21, 20, 273, 136, 5189, 4644, 65793, 63736, 1381653, 1348756, 17829905, 9408392, 340873541, 306792740, 4295032833, 4294508536, 90195689493, 90187300756, 1172543963409, 588285278344, 22286925370437, 19948279992868, 282574505115905, 273778277873912

Offset

0,3

References

S. Wolfram, A New Kind of Science, Wolfram Media, 2002; p. 55.

Links

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

Mathematica

rule=105; 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. A267145.

Sequence in context: A023463 A004462 A195033 * A154352 A291433 A010860

Adjacent sequences: A267144 A267145 A267146 * A267148 A267149 A267150

Keyword

nonn,easy

Author

Robert Price, Jan 11 2016

Status

approved