id:A047175 - 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-1)/2.

+0
1

0, 0, 0, 0, 0, 0, 4, 5, 20, 24, 60, 70, 161, 188, 476, 567, 1512, 1820, 4740, 5709, 14520, 17500, 44572, 53911, 138567, 168245, 433433, 527540, 1355900, 1652924, 4243148, 5180903, 13308416, 16276632 (list; graph; listen)

	OFFSET	`1,7`
	CROSSREFS	`Sequence in context: A050251 A125995 A080610 this_sequence A133632 A163141 A059182` `Adjacent sequences: A047172 A047173 A047174 this_sequence A047176 A047177 A047178`
	KEYWORD	`nonn`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu)`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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