OFFSET
1,1
REFERENCES
Alexander Apelblat, Tables of Integrals and Series, Harri Deutsch, 1996, 4.1.37.
FORMULA
Equals (2/243)*(405+37*Pi*sqrt(3)).
EXAMPLE
4.990384604362124...
MAPLE
10/3+74/243*Pi*3^(1/2);
MATHEMATICA
RealDigits[2*(405+37*Pi*Sqrt[3])/243, 10, 120][[1]] (* Amiram Eldar, Aug 23 2024 *)
CROSSREFS
KEYWORD
AUTHOR
R. J. Mathar, Feb 08 2009
STATUS
approved