|
|
A263179
|
|
Decimal expansion of a constant related to A263142 (negated).
|
|
5
|
|
|
1, 8, 7, 8, 0, 3, 0, 2, 1, 0, 6, 3, 7, 4, 5, 8, 5, 8, 9, 7, 6, 4, 0, 9, 6, 5, 7, 8, 8, 7, 0, 7, 0, 1, 3, 8, 8, 0, 6, 7, 5, 8, 9, 8, 4, 0, 4, 3, 1, 7, 5, 2, 9, 6, 0, 4, 8, 4, 8, 1, 7, 9, 1, 9, 8, 4, 5, 2, 0, 7, 8, 9, 6, 1, 5, 5, 5, 6, 8, 9, 8, 5, 6, 7, 2, 8, 0, 5, 6, 2, 2, 0, 0, 6, 2, 7, 0, 3, 9, 2, 4, 6, 0, 3, 5, 2
(list;
constant;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
0,2
|
|
LINKS
|
|
|
FORMULA
|
Integral_{x=0..infinity} exp(-3*x)/(x*(1 - exp(-5*x))^2) - 1/(25*x^3) - 2/(25*x^2) + 1/(300*x*exp(x)) dx.
|
|
EXAMPLE
|
-0.187803021063745858976409657887070138806758984043175296048481791984...
|
|
MATHEMATICA
|
NIntegrate[E^(-3*x)/(1-E^(-5*x))^2/x - 1/(25*x^3) - 2/(25*x^2) + E^(-x)/(300*x), {x, 0, Infinity}, WorkingPrecision -> 120, MaxRecursion -> 100, PrecisionGoal -> 110]
|
|
CROSSREFS
|
|
|
KEYWORD
|
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|