OFFSET
0,1
COMMENTS
Fraction of the horizon obstructed by the exponential curve y=exp(x) when viewed from the origin.
LINKS
Stanislav Sykora, Table of n, a(n) for n = 0..2000
FORMULA
Equals 1/2 - A257777/(2*Pi).
EXAMPLE
0.3061042535821462494754842948127622057989073959973482346216694572...
MATHEMATICA
RealDigits[(Pi-ArcTan[E])/(2Pi), 10, 120][[1]] (* Harvey P. Dale, Oct 23 2017 *)
PROG
(PARI) (Pi-atan(exp(1)))/(2*Pi)
CROSSREFS
KEYWORD
AUTHOR
Stanislav Sykora, May 12 2015
STATUS
approved