id:A048048 - OEIS Search Results

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

+0
1

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)

	OFFSET	`1,14`
	CROSSREFS	`Adjacent sequences: A048045 A048046 A048047 this_sequence A048049 A048050 A048051` `Sequence in context: A054967 A048031 A048013 this_sequence A136835 A104627 A119956`
	KEYWORD	`nonn`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu)`

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Last modified November 8 20:39 EST 2009. Contains 166234 sequences.

AT&T Labs Research