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Search: id:A056104
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| A056104 |
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Number of 9-antichain covers of a labeled n-set. |
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+0
4
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| 20, 1484110, 15936368770, 59961701958816, 121740972715475096, 167109117756164222210, 176340421320592288902670, 154794453668193645059165412, 118987888829384136293188343172
(list; graph; listen)
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OFFSET
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6,1
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REFERENCES
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V. Jovovic and G. Kilibarda, On the number of Boolean functions in the Post classes F^{mu}_8, Diskretnaya Matematika, 11 (1999), no. 4, 127-138 (translated in Discrete Mathematics and Applications, 9, (1999), no. 6)
V. Jovovic, G. Kilibarda, On enumeration of the class of all monotone Boolean functions, in preparation.
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LINKS
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K. S. Brown, Dedekind's problem
Eric Weisstein's World of Mathematics, Antichain covers"
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CROSSREFS
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Cf. A056046-A056049, A056052, A051112-A051118.
Sequence in context: A165344 A013766 A078354 this_sequence A051117 A013812 A013894
Adjacent sequences: A056101 A056102 A056103 this_sequence A056105 A056106 A056107
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KEYWORD
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nonn
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AUTHOR
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Vladeta Jovovic, Goran Kilibarda, Zoran Maksimovic (vladeta(AT)eunet.rs), Jul 29 2000
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