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Search: id:A094732
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| A094732 |
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Number of connected ordered 5-element multiantichains on a labeled n-set. |
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+0
1
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| 0, 1, 1, 241, 11761, 736801, 50524321, 3176975761, 171220124881, 8021076673921, 337296669440641, 13098877345981681, 479949442942292401, 16851170646696553441, 573314381587074123361, 19054886956855687698001
(list; graph; listen)
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OFFSET
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0,4
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FORMULA
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E.g.f.: exp(31*x)-20*exp(23*x)+60*exp(19*x)+20*exp(17*x)+5*exp(16*x)-95*exp(15*x)-120*exp(14*x)+150*exp(13*x)+180*exp(12*x)-420*exp(11*x)-110*exp(10*x)+620*exp(9*x)+160*exp(8*x)-690*exp(7*x)+840*exp(6*x)-936*exp(5*x)-1140*exp(4*x)+3560*exp(3*x)-3010*exp(2*x)+1095*exp(x)-150.
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CROSSREFS
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Cf. A094033-A094037, A094729-A094738.
Sequence in context: A060893 A007205 A008349 this_sequence A119728 A133327 A001361
Adjacent sequences: A094729 A094730 A094731 this_sequence A094733 A094734 A094735
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KEYWORD
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nonn
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AUTHOR
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Goran Kilibarda, Vladeta Jovovic (vladeta(AT)Eunet.yu), May 24 2004
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