OFFSET
1,1
LINKS
G. C. Greubel, Table of n, a(n) for n = 1..10000
D. H. Bailey, J. M. Borwein, Highly Parallel, High-Precision Numerical Integration p. 9. (2005) Lawrence Berkeley National Laboratory
FORMULA
Equals 4*log(2 + sqrt(3)) - 2*Pi/3.
EXAMPLE
3.17343648530607134219175646704553851997648161961999537...
MATHEMATICA
RealDigits[4*Log[2 + Sqrt[3]] - 2*Pi/3, 10, 103] // First
PROG
(PARI) default(realprecision, 100); 4*log(2 + sqrt(3)) - 2*Pi/3 \\ G. C. Greubel, Aug 31 2018
(Magma) SetDefaultRealField(RealField(100)); R:= RealField(); 4*Log(2 + Sqrt(3)) - 2*Pi(R)/3; // G. C. Greubel, Aug 31 2018
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
Jean-François Alcover, Sep 22 2014
STATUS
approved