%I #5 Mar 30 2012 18:56:54
%S 0,0,0,0,0,0,0,0,0,0,0,0,0,0,10,11,12,72,78,84,294,315,336,896,952,
%T 1008,2268,2394,2520,5230,5502,5775,12705,13409,14124,37224,39600,
%U 42042,126412,135135,144144,434434,464464,495495,1400455
%N Number of nonempty subsets of {1,2,...,n} in which exactly 5/6 of the elements are <= n/3.
%K nonn
%O 1,15
%A _Clark Kimberling_