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A135005
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Decimal expansion of 5/e.
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2
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1, 8, 3, 9, 3, 9, 7, 2, 0, 5, 8, 5, 7, 2, 1, 1, 6, 0, 7, 9, 7, 7, 6, 1, 8, 8, 5, 0, 8, 0, 7, 3, 0, 4, 3, 3, 7, 2, 2, 9, 0, 5, 5, 6, 5, 5, 1, 5, 8, 8, 3, 9, 1, 7, 2, 5, 3, 9, 1, 8, 4, 0, 0, 8, 4, 8, 7, 3, 0, 7, 4, 7, 8, 7, 2, 4, 4, 9, 9, 0, 1, 6, 7, 8, 5, 7, 3, 6, 3, 7, 1, 7, 2, 9, 5, 9, 8, 2, 1, 8, 7, 3, 3, 1, 3, 6, 6, 2, 6
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OFFSET
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1,2
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COMMENTS
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The fraction of substituents which become isolated in a simple polymer model is 1/10 this number, see Flory 1939 (and 1936). - Charles R Greathouse IV, Nov 30 2012
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LINKS
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FORMULA
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1/(2*e) = Integral_{x=1..oo} e^(-x^2) * x dx. - Amiram Eldar, Aug 03 2020
1/(2*e) = lim_{n->oo} n * ((n+1)!^(1/(n+1)) - n!^(1/n) - 1/e) (Furdui, 2008). - Amiram Eldar, Apr 20 2023
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EXAMPLE
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5/e = 1.839397205857211607977618850807304337229...
1/(2*e) = 0.1839397205857211607977618850807304337229... (see Greathouse's comment).
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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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