OFFSET
1,1
LINKS
G. C. Greubel, Table of n, a(n) for n = 1..5000
FORMULA
Equals Integral_{x >= 0} x^(Pi-1)/e^x dx (Euler integral of the second kind).
EXAMPLE
2.2880377953400324179595889090602339228896881533562224...
MAPLE
evalf(GAMMA(Pi), 120);
MATHEMATICA
RealDigits[Gamma[Pi], 10, 120][[1]]
PROG
(PARI) default(realprecision, 120); gamma(Pi)
(MATLAB) format long; gamma(pi)
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
Iaroslav V. Blagouchine, Feb 29 2016
STATUS
approved