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%I #8 Oct 26 2019 23:09:10
%S 1,3,8,16,39,77,179,354,799,1584,3504,6960,15174,30183,65085,129598,
%T 277071,552140,1172348,2337624,4935586,9845978,20691318,41292196,
%U 86432614,172538352,359934704,718680768,1494861996,2985378027
%N a(n) = Sum_{k=0..floor(n/2)+1} (k+1) * A026009(n, k).
%K nonn
%O 0,2
%A _Clark Kimberling_
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