A048015 Number of nonempty subsets of {1,2,...,n} in which exactly 5/6 of the elements are <= (n-1)/3.

0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 11, 12, 13, 78, 84, 90, 315, 336, 357, 952, 1008, 1064, 2394, 2520, 2646, 5502, 5775, 6049, 13409, 14124, 14850, 39600, 42042, 44550, 135135, 144144, 153439, 464464, 495495, 527527