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A010053
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4^n*(2*n+1)!*(n!)^2/(n+1).
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0
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1, 12, 2560, 2903040, 10701766656, 98099527680000, 1888892391260160000, 68028459471234662400000, 4210629057689788455321600000, 419914246162041071241548267520000
(list; graph; refs; listen; history; internal format)
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