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A248760
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Decimal expansion of sum_{n >= 1} (2n)!/(3n)!.
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4
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3, 6, 8, 7, 3, 7, 8, 2, 0, 2, 9, 4, 6, 4, 9, 9, 0, 4, 0, 8, 9, 7, 7, 7, 2, 9, 6, 1, 6, 5, 7, 4, 0, 3, 4, 2, 0, 9, 8, 3, 7, 1, 9, 7, 8, 8, 1, 4, 6, 9, 8, 4, 9, 1, 0, 6, 8, 7, 8, 2, 5, 7, 4, 5, 8, 9, 0, 5, 9, 0, 1, 7, 3, 5, 7, 9, 6, 1, 9, 0, 0, 6, 7, 1, 5, 4
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OFFSET
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0,1
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LINKS
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EXAMPLE
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0.368737820294649904089777296165740342098371978814698491068782574589059...
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MAPLE
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MATHEMATICA
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u = N[Sum[(2 n)!/(3 n)!, {n, 1, 300}], 120]
N[HypergeometricPFQ[{1, 3/2}, {4/3, 5/3}, 4/27]/3, 120] (* Vaclav Kotesovec, Nov 15 2020 *)
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PROG
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CROSSREFS
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KEYWORD
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AUTHOR
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STATUS
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approved
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