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A369820
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Number of (undirected) Eulerian circuits on the complete graph K_{2n+1}.
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0
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1, 132, 64988160, 455760028510617600, 128663499619046483713892580065280, 3352855075715829436523159831078082969600000000000000, 16066479367821778463055998145740101703072909829920380472524800000000000000000
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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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Cf. A135388 (directed Eulerian circuits)
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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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