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A025762
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9th-order Vatalan numbers (generalization of Catalan numbers).
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1
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1, 1, 37, 1909, 112483, 7123123, 472012183, 32269160215, 2256940619488, 160620490138312, 11588554266307408, 845405636848547320, 62239772654736987376, 4617428134374127211320, 344799253687326693132448
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internal format)
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OFFSET
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0,3
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LINKS
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FORMULA
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G.f.: 9/(8 + (1 - 81*x)^(1/9)).
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MATHEMATICA
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Table[SeriesCoefficient[9/(8 + (1 - 81 x)^(1/9)), {x, 0, n}], {n, 0, 20}] (* Vincenzo Librandi, Dec 29 2012 *)
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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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