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A048048 Number of nonempty subsets of {1,2,...,n} in which exactly 5/6 of the elements are <= (n+1)/3. +0
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9, 10, 11, 66, 72, 78, 273, 294, 315, 840, 896, 952, 2142, 2268, 2394, 4959, 5230, 5502, 12012, 12705, 13409, 34914, 37224, 39600, 117975, 126412, 135135, 405405, 434434, 464464, 1309959, 1400455 (list; graph; listen)
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Last modified December 13 23:45 EST 2009. Contains 170824 sequences.


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