Search: id:A160239
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%I A160239
%S A160239 1,8,8,24,8,64,24,112,8,64,64,192,24,192,112,416,8,64,64,192,64,512,192,
%T A160239 896,24,192,192,576,112,896,416,1728,8,64,64,192,64,512,192,896,64,512,
%U A160239 512,1536,192,1536,896,3328,24,192,192,576,192,1536,576,2688,112,896
%N A160239 Number of "ON" cells in a 2-dimensional cellular automaton evolving acording 
               to the rule that a cell is ON in a given generation if and only if 
               there was an odd number of ON cells among the eight nearest neighbors 
               in the preceding generation, starting with one ON cell.
%C A160239 It appears that a(2^k)=8 for k=0,1,2,3,... .
%H A160239 <a href="Sindx_Ce.html#cell">Index entries for sequences related to cellular 
               automata</a>
%Y A160239 A122108, A147562
%Y A160239 Sequence in context: A006784 A061156 A109049 this_sequence A037018 A003873 
               A077110
%Y A160239 Adjacent sequences: A160236 A160237 A160238 this_sequence A160240 A160241 
               A160242
%K A160239 nonn
%O A160239 0,2
%A A160239 John W. Layman (layman(AT)math.vt.edu), May 05 2009

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