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A267147 Decimal representation of the n-th iteration of the "Rule 105" elementary cellular automaton starting with a single ON (black) cell. 1
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 (list; graph; refs; listen; history; text; internal format)
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

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Last modified May 26 17:49 EDT 2019. Contains 323597 sequences. (Running on oeis4.)