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A307924
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Number of (undirected) Hamiltonian cycles in the complete tripartite graph K_{n,n,n}.
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0
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1, 16, 1584, 463104, 299289600, 361552896000, 732443959296000, 2305449150971904000, 10654390419268829184000, 69202145783548005580800000, 610152377325314475294720000000, 7098963015274747190071787520000000, 106459726394067298796772293345280000000, 2017443502989317777418537171765166080000000
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OFFSET
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1,2
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LINKS
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FORMULA
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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