A267842 Binary representation of the n-th iteration of the "Rule 225" elementary cellular automaton starting with a single ON (black) cell.

1, 0, 10100, 1110000, 111101100, 11111101000, 1111111100100, 111111111000000, 11111111110111100, 1111111111110111000, 111111111111110110100, 11111111111111110110000, 1111111111111111110101100, 111111111111111111110101000, 11111111111111111111110100100

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=225; 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. A267841.

Sequence in context: A213182 A213184 A267645 * A193241 A265122 A267146

Adjacent sequences: A267839 A267840 A267841 * A267843 A267844 A267845

Keyword

nonn,easy

Author

Robert Price, Jan 21 2016

Status

approved