%I #4 Mar 30 2012 18:56:54
%S 0,0,0,0,0,0,0,0,0,0,0,9,10,11,44,48,52,130,140,150,405,440,476,1547,
%T 1701,1862,5852,6440,7056,20734,22792,24955,73600,81080,89000,269225,
%U 297440,327492,991314,1096627,1209155,3626363,4014205
%N Number of nonempty subsets of {1,2,...,n} in which exactly 3/4 of the elements are <= (n-3)/3.
%K nonn
%O 1,12
%A _Clark Kimberling_