id:A048075 - OEIS Search Results

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Number of nonempty subsets of {1,2,...,n} in which exactly 3/4 of the elements are <= (n+2)/3.

+0
1

0, 0, 0, 0, 0, 0, 4, 5, 6, 24, 28, 32, 80, 90, 100, 245, 275, 306, 882, 1001, 1127, 3332, 3780, 4256, 11984, 13532, 15180, 42450, 47880, 53700, 153780, 173635, 195052, 564399, 637307, 716210, 2065778, 2330900, 2618486, 7551089 (list; graph; listen)

	OFFSET	`1,7`
	CROSSREFS	`Adjacent sequences: A048072 A048073 A048074 this_sequence A048076 A048077 A048078` `Sequence in context: A103518 A103313 A036492 this_sequence A048016 A019067 A095212`
	KEYWORD	`nonn`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu)`

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Last modified October 13 20:18 EDT 2008. Contains 145016 sequences.

AT&T Labs Research