Search: id:A124789
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%I A124789
%S A124789 1,0,1,0,1,1,1,1,1,2,2,2,2,3,4,4,4,5,7,8,8,9,12,15,16,17,21,27,31,33,38,
%T A124789 48,58,64,71,86,106,122,135,157,192,228,257,292,349,420,485,549,641,769,
%U A124789 905,1034,1190,1410,1674,1939,2224,2600,3084,3613
%N A124789 Expansion of (1+x^2)/(1-x^4-x^5).
%C A124789 Diagonal sums of A124788.
%F A124789 a(n)=sum{k=0..floor(n/2), C(floor(k/2),n-2k)}
%Y A124789 Sequence in context: A001156 A035451 A124746 this_sequence A103372 A029082 
               A035450
%Y A124789 Adjacent sequences: A124786 A124787 A124788 this_sequence A124790 A124791 
               A124792
%K A124789 easy,nonn
%O A124789 0,10
%A A124789 Paul Barry (pbarry(AT)wit.ie), Nov 07 2006

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