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Search: id:A114714
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| A114714 |
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Number of linear extensions of a 2 X 2 X n lattice. |
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+0
2
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OFFSET
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0,2
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REFERENCES
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Stanley, R., Enumerative Combinatorics, Vol. 2, Prop. 7.10.3 and Vol. 1, Sec 3.5, Chains in Distributive Lattices.
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CROSSREFS
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Cf. A114717.
Sequence in context: A119695 A119698 A112103 this_sequence A087085 A067626 A053071
Adjacent sequences: A114711 A114712 A114713 this_sequence A114715 A114716 A114717
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KEYWORD
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nonn,hard
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AUTHOR
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Mitch Harris (Harris.Mitchell (AT) mgh.harvard.edu), Dec 27, 2005
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