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A267441 Decimal representation of the n-th iteration of the "Rule 129" elementary cellular automaton starting with a single ON (black) cell. 1

%I #8 Jan 16 2016 10:32:05

%S 1,0,4,0,124,112,1612,0,32764,32752,425932,32512,8289532,7893232,

%T 107367628,0,2147483644,2147483632,27917287372,2147483392,

%U 543313362172,517543555312,7037303901388,2147418112,140731045707772,140705275117552,1829477823610828

%N Decimal representation of the n-th iteration of the "Rule 129" elementary cellular automaton starting with a single ON (black) cell.

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

%H Robert Price, <a href="/A267441/b267441.txt">Table of n, a(n) for n = 0..1000</a>

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/ElementaryCellularAutomaton.html">Elementary Cellular Automaton</a>

%H S. Wolfram, <a href="http://wolframscience.com/">A New Kind of Science</a>

%H <a href="/index/Ce#cell">Index entries for sequences related to cellular automata</a>

%H <a href="https://oeis.org/wiki/Index_to_Elementary_Cellular_Automata">Index to Elementary Cellular Automata</a>

%t rule=129; 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 *)

%Y Cf. A267417.

%K nonn,easy

%O 0,3

%A _Robert Price_, Jan 15 2016

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Last modified April 23 07:42 EDT 2024. Contains 371905 sequences. (Running on oeis4.)