Search: id:A127195
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%I A127195
%S A127195 2,4,8,16,28,56,104,208,384,768,1408,2816,5184,10368,19072,38144,70144,
%T A127195 140288,258048,516096,949248,1898496,3491840,6983680,12845056,25690112,
%U A127195 47251456,94502912,173817856,347635712,639401984,1278803968
%N A127195 Number of subsets of {1,2,...,n} which contain no three consecutive odd 
               numbers.
%F A127195 a(n) = A000073(floor((n+1)/2)-3) * 2^(floor(n/2))
%Y A127195 Sequence in context: A089055 A112128 A054189 this_sequence A018726 A049884 
               A085583
%Y A127195 Adjacent sequences: A127192 A127193 A127194 this_sequence A127196 A127197 
               A127198
%K A127195 easy,nonn
%O A127195 0,1
%A A127195 Fung Cheok Yin (cheokyin_restart(AT)yahoo.com.hk), Mar 27 2007

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