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A090142
Decimal expansion of e^2 - e.
8
4, 6, 7, 0, 7, 7, 4, 2, 7, 0, 4, 7, 1, 6, 0, 4, 9, 9, 1, 8, 7, 0, 1, 3, 9, 9, 8, 9, 2, 2, 2, 3, 4, 5, 3, 1, 5, 4, 2, 3, 0, 6, 8, 4, 7, 6, 8, 5, 1, 8, 8, 7, 7, 4, 9, 1, 2, 0, 1, 6, 0, 1, 9, 4, 7, 9, 8, 4, 9, 7, 1, 6, 5, 7, 2, 5, 5, 1, 0, 1, 6, 8, 8, 1, 2, 9, 3, 0, 3, 0, 6, 5, 5, 3, 9, 5, 5, 3, 6, 7, 3, 4, 6, 2, 8
OFFSET
1,1
COMMENTS
Expected number of picks from a uniform [0,1] needed to first exceed a sum of 2.
FORMULA
Equals Sum_{n>0} Sum_{k>0} n/(n!*k!). - Fredrik Johansson, Apr 21 2006
EXAMPLE
4.670774270471604991870139989222345315423068476851887749120160194798497165725...
MATHEMATICA
RealDigits[N[Integrate[E, {x, 1, E}], 100]][[1]] (* Arkadiusz Wesolowski, May 30 2013 *)
RealDigits[E^2 - E, 10, 111][[1]] (* Robert G. Wilson v, Nov 05 2013 *)
PROG
(PARI) exp(2)-exp(1) \\ Charles R Greathouse IV, Oct 02 2022
CROSSREFS
KEYWORD
nonn,cons,easy,changed
AUTHOR
Eric W. Weisstein, Nov 22 2003
STATUS
approved