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Search: id:A007010
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| A007010 |
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Number of 4-voter voting schemes with n linearly ranked choices.
(Formerly M4851)
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+0
1
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| 1, 12, 81, 372, 1332, 3984, 10420, 24540, 53145, 107436, 205065, 372792, 649936, 1092672, 1779408, 2817288, 4350105, 6567660, 9716905, 14114892, 20163924
(list; graph; listen)
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OFFSET
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1,2
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REFERENCES
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N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
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LINKS
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D. E. Loeb (daniel.loeb(AT)verizon.net), On Games, Voting Schemes and Distributive Lattices. LaBRI Report 625-93, University of Bordeaux I, 1993.
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FORMULA
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G.f.: [1+6x+21x^2+28x^3+21x^4+6x^5+x^6]/[(1+x)^3(1-x)^9]. - Ralf Stephan, Apr 23 2004
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CROSSREFS
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Sequence in context: A009500 A012195 A147650 this_sequence A069996 A163020 A164300
Adjacent sequences: A007007 A007008 A007009 this_sequence A007011 A007012 A007013
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KEYWORD
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nonn
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AUTHOR
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Daniel LOEB, daniel.loeb(AT)verizon.net
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