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A282529 Decimal expansion of Product_{n>=2} (1-1/n!). 2
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 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

Conjectured to be irrational, transcendental and normal, none have been shown.

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!)

EXAMPLE

0.39533856736744556603235620043118061302665648675872...

MAPLE

evalf(product(1-1/n!, n = 2..infinity), 100); # Lucian Craciun, Feb 22 2017

MATHEMATICA

RealDigits[Product[1-1/n!, {n, 2, 70}], 10, 100][[1]] (* Robert G. Wilson v, Mar 19 2014 *)

PROG

(PARI) prodinf(n=3, 1-1/gamma(n)) \\ Charles R Greathouse IV, Nov 13 2014

CROSSREFS

Cf. A238695.

Sequence in context: A016675 A265272 A021257 * A070341 A245719 A085851

Adjacent sequences:  A282526 A282527 A282528 * A282530 A282531 A282532

KEYWORD

nonn,cons

AUTHOR

Lucian Craciun, Feb 22 2017

STATUS

approved

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Last modified July 20 22:20 EDT 2019. Contains 325189 sequences. (Running on oeis4.)