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%I #4 Mar 30 2012 18:56:54
%S 0,0,0,0,0,0,0,0,0,21,28,112,144,360,450,1110,1430,4235,5775,17556,
%T 24388,68328,94731,251160,349300,923230,1301080,3482710,4976070,
%U 13287846,19136832,50391978,72898098
%N Number of nonempty subsets of {1,2,...,n} in which exactly 3/5 of the elements are <= (n-4)/2.
%K nonn
%O 1,10
%A _Clark Kimberling_
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