Search: id:A026680
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%I A026680
%S A026680 1,1,2,4,6,10,19,29,48,88,136,224,403,627,1030,1830,2860,4690,
%T A026680 8257,12947,21204,37068,58272,95340,165723,261063,426786,738352,
%U A026680 1165138,1903490,3279891,5183381,8463272,14532484,22995756,37528240
%N A026680 Sum{T(n-k,k)}, 0<=k<=[ n/2 ], T given by A026670.
%Y A026680 Sequence in context: A018074 A000067 A133140 this_sequence A164141 A034872 
               A032362
%Y A026680 Adjacent sequences: A026677 A026678 A026679 this_sequence A026681 A026682 
               A026683
%K A026680 nonn
%O A026680 0,3
%A A026680 Clark Kimberling (ck6(AT)evansville.edu)

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