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A267609 Decimal representation of the n-th iteration of the "Rule 182" elementary cellular automaton starting with a single ON (black) cell. 1

%I #9 Jul 28 2016 10:05:10

%S 1,7,21,127,381,1911,5461,32767,98301,491511,1408981,8355711,25001341,

%T 125269879,357913941,2147483647,6442450941,32212254711,92341796821,

%U 547608330111,1638530022781,8209829984119,23456963876181,140735340838911,422201727483901

%N Decimal representation of the n-th iteration of the "Rule 182" 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="/A267609/b267609.txt">Table of n, a(n) for n = 0..1000</a>

%H A. J. Macfarlane, <a href="http://www.damtp.cam.ac.uk/user/ajm/Papers2016/GFsForCAsOfEvenRuleNo.ps">Generating functions for integer sequences defined by the evolution of cellular automata...</a>, Fig. 2.

%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=182; 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. A071038.

%K nonn,easy

%O 0,2

%A _Robert Price_, Jan 18 2016

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Last modified May 20 09:36 EDT 2024. Contains 372710 sequences. (Running on oeis4.)