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%I #5 Mar 30 2012 18:56:53
%S 0,0,0,0,0,0,6,10,40,60,150,210,455,630,1470,2142,5544,8400,21630,
%T 32802,80520,121110,290400,437580,1056627,1608607,3929926,6034600,
%U 14742910,22712326,55107598,84996158,205272008,317302008
%N Number of nonempty subsets of {1,2,...,n} in which exactly 3/5 of the elements are <= (n-1)/2.
%K nonn
%O 1,7
%A _Clark Kimberling_
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