A282529 Decimal expansion of Product_{n>=2} (1-1/n!).
3, 9, 5, 3, 3, 8, 5, 6, 7, 3, 6, 7, 4, 4, 5, 5, 6, 6, 0, 3, 2, 3, 5, 6, 2, 0, 0, 4, 3, 1, 1, 8, 0, 6, 1, 3, 0, 2, 6, 6, 5, 6, 4, 8, 6, 7, 5, 8, 7, 2, 0, 1, 3, 2, 5, 0, 1, 1, 9, 7, 3, 9, 0, 1, 5, 1, 7, 4, 1, 6, 2, 0, 3, 8, 4, 7, 7, 5, 6, 1, 2, 6, 7, 0, 9, 2, 0, 0, 7, 7, 9, 3, 8, 9, 1, 0, 2, 2, 7, 0, 1, 1, 5, 8, 6, 8, 5, 4, 9, 6, 4, 0, 8, 4, 6, 7
Offset: 0
Examples
0.39533856736744556603235620043118061302665648675872...
Links
- Lucian Craciun, Table of n, a(n) for n = 0..9900
- StackExchange, Closed form for Product_{n>=2} (1-1/n!), Nov 11 2016.
- Wolfram Alpha, Product_{n>=2} (1-1/n!).
Programs
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Maple
evalf(product(1-1/n!, n = 2..infinity), 100); # Lucian Craciun, Feb 22 2017
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Mathematica
RealDigits[Product[1-1/n!, {n, 2, 70}], 10, 100][[1]] (* Robert G. Wilson v, Mar 19 2014 *) -
PARI
prodinf(n=3, 1-1/gamma(n)) \\ Charles R Greathouse IV, Nov 13 2014
Formula
Equals 1/A247551. - Amiram Eldar, Sep 15 2023
Comments