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%I #4 Mar 30 2012 18:56:54
%S 0,0,0,0,0,0,0,20,35,105,168,364,588,1260,2250,4960,9460,20020,38500,
%T 77001,148161,286689,560469,1071525,2143051,4064071,8259196,15473436,
%U 31705476,58620692,120894085,221227279,459855214
%N Number of nonempty subsets of {1,2,...,n} in which exactly 2/5 of the elements are <= (n-4)/2.
%K nonn
%O 1,8
%A _Clark Kimberling_
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