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A019693
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Decimal expansion of 2*Pi/3.
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10
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2, 0, 9, 4, 3, 9, 5, 1, 0, 2, 3, 9, 3, 1, 9, 5, 4, 9, 2, 3, 0, 8, 4, 2, 8, 9, 2, 2, 1, 8, 6, 3, 3, 5, 2, 5, 6, 1, 3, 1, 4, 4, 6, 2, 6, 6, 2, 5, 0, 0, 7, 0, 5, 4, 7, 3, 1, 6, 6, 2, 9, 7, 2, 8, 2, 0, 5, 2, 1, 0, 9, 3, 7, 5, 2, 4, 1, 3, 9, 3, 3, 2, 4, 1, 8, 6, 8, 9, 8, 8, 3, 5, 6, 1, 4, 1, 1, 3, 7
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OFFSET
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1,1
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COMMENTS
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Volume between a cylinder and the inscribed sphere of radius 1. - Omar E. Pol, Sep 25 2013
(2/3)*Pi is also the surface area of a sphere whose diameter equals the square root of 2/3. More generally, x*Pi is also the surface area of a sphere whose diameter equals the square root of x. - Omar E. Pol, Jun 18 2018
Volume of a hemisphere of radius 1. - Omar E. Pol, Aug 17 2019
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LINKS
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FORMULA
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Equals Integral_{x=-oo..oo} 1/(1 + x^6) dx. - Stefano Spezia, Mar 05 2022
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EXAMPLE
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2.094395102393195492308428922186335256131446... - Omar E. Pol, Sep 25 2013
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MATHEMATICA
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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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