Search: id:A094188
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%I A094188
%S A094188 1,0,3,2,8,10,23,36,69,116,208,356,621,1064,1831,3126,5336,9070,15395,
%T A094188 26060,44041,74280,125088,210312,353113,592080,991563,1658666,2771624,
%U A094188 4626706,7716143,12857076,21405261,35608604,59192176,98325356
%N A094188 Number of levels in the compositions of n with odd summands.
%H A094188 S. Heubach and T. Mansour, <a href="http://arXiv.org/abs/math.CO/0310197">
               Counting rises, levels and drops in compositions</a>
%F A094188 G.f.: [x^2(1-x^2)]/[(1+x)^2(1-x-x^2)^2].
%F A094188 (1/5) * [3nF(n)-4nF(n-1)+7F(n)-10F(n-1)+10(-1)^n], F(n)=A000045(n).
%Y A094188 Sequence in context: A060921 A163356 A095013 this_sequence A088551 A165660 
               A107300
%Y A094188 Adjacent sequences: A094185 A094186 A094187 this_sequence A094189 A094190 
               A094191
%K A094188 nonn
%O A094188 2,3
%A A094188 Ralf Stephan, May 25 2004

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