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A371923
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Lateral surface area of a right circular conoid with unit height and base radius.
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0
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6, 0, 2, 7, 2, 1, 2, 5, 3, 4, 5, 4, 7, 3, 3, 3, 0, 3, 3, 4, 0, 7, 1, 7, 3, 5, 0, 4, 1, 4, 5, 6, 7, 9, 9, 2, 7, 1, 0, 3, 7, 5, 7, 4, 3, 0, 0, 3, 1, 4, 1, 0, 5, 7, 4, 7, 7, 1, 8, 9, 2, 6, 9, 9, 7, 2, 8, 9, 0, 8, 0, 1, 4, 0, 3, 9, 8, 8, 8, 2
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OFFSET
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1,1
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LINKS
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EXAMPLE
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6.02721253454...
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MATHEMATICA
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RealDigits[Pi HypergeometricPFQ[{-1/2, 1/4, 3/4}, {1/2, 1}, -1] - NIntegrate[(Sqrt[u] (1 + u) ArcTanh[Sqrt[(1 - u)/(1 + u^2)]])/(u - 1), {u, 0, 1}, WorkingPrecision -> 250, PrecisionGoal -> 120]][[1]]
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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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