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A004824
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Denominator of 2^n*(3*n-3)!/( ((n-1)!)^3 * (2*n)! ).
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2
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1, 1, 1, 3, 36, 900, 675, 66150, 6350400, 34292160, 857304000, 12966723000, 222286680000, 2366686281960000, 57983813908020000, 1581376742946000000, 2226578454067968000000, 55155529133626521600000, 114553791277532006400000, 3490915210814660428800000
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OFFSET
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1,4
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LINKS
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CROSSREFS
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KEYWORD
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nonn,frac
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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