id:A048073 - OEIS Search Results

Search: id:A048073

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)/3.

+0
1

0, 0, 0, 2, 3, 4, 12, 15, 18, 51, 63, 76, 220, 270, 325, 945, 1155, 1390, 4102, 5005, 6027, 17955, 21875, 26348, 79116, 96288, 116010, 350568, 426303, 513729, 1560449, 1896279, 2285569, 6972339, 8468163, 10208110, 31253950 (list; graph; listen)

	OFFSET	`1,4`
	CROSSREFS	`Sequence in context: A037339 A062946 A060529 this_sequence A002447 A007499 A117555` `Adjacent sequences: A048070 A048071 A048072 this_sequence A048074 A048075 A048076`
	KEYWORD	`nonn`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu)`

page 1

Search completed in 0.002 seconds

Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.

AT&T Labs Research