id:A007009 - OEIS Search Results

Search: id:A007009

Displaying 1-1 of 1 results found.

page 1

Number of 3-voter voting schemes with n linearly ranked choices.
(Formerly M3435)

+0
2

1, 4, 12, 27, 54, 96, 160, 250, 375, 540, 756, 1029, 1372, 1792, 2304, 2916, 3645, 4500, 5500, 6655, 7986, 9504, 11232, 13182, 15379, 17836, 20580, 23625, 27000, 30720, 34816, 39304, 44217, 49572, 55404, 61731, 68590, 76000, 84000, 92610 (list; graph; listen)

	OFFSET	`1,2`
	LINKS	`D. E. Loeb (daniel.loeb(AT)verizon.net), On Games, Voting Schemes, and Distributive Lattices. LaBRI Report 625-93, University of Bordeaux I, 1993.`
	FORMULA	`G.f.: (1 - x^3 ) / (1 - x)^4 (1 - x^2 )^2.` `a(n) = (1/2)Sum_{k=1..n+1} kfloor(k/2)*ceil(k/2). - Vladeta Jovovic (vladeta(AT)Eunet.yu), Apr 29 2006`
	CROSSREFS	`A006009/4.` `Sequence in context: A047732 A104385 A062479 this_sequence A104384 A013697 A064444` `Adjacent sequences: A007006 A007007 A007008 this_sequence A007010 A007011 A007012`
	KEYWORD	`nonn`
	AUTHOR	`daniel.loeb(AT)verizon.net (Daniel LOEB)`
	EXTENSIONS	`More terms from James A. Sellers (sellersj(AT)math.psu.edu), Sep 08 2000`

page 1

Search completed in 0.002 seconds

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

AT&T Labs Research