id:A047184 - OEIS Search Results

Search: id:A047184

Displaying 1-1 of 1 results found.

page 1

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

+0
1

0, 0, 0, 0, 0, 4, 5, 15, 18, 51, 63, 175, 220, 596, 759, 2037, 2625, 7000, 9108, 24156, 31683, 83667, 110487, 290719, 386155, 1012935, 1352263, 3537703, 4743700, 12381252, 16666715, 43411489, 58639599 (list; graph; listen)

	OFFSET	`1,6`
	CROSSREFS	`Adjacent sequences: A047181 A047182 A047183 this_sequence A047185 A047186 A047187` `Sequence in context: A041034 A042535 A066516 this_sequence A002509 A100234 A007390`
	KEYWORD	`nonn`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu)`

page 1

Search completed in 0.002 seconds

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

AT&T Labs Research