OFFSET
0,1
REFERENCES
Steven R. Finch, Mathematical Constants, Cambridge University Press, 2003, Section 5.16 Extreme value constants, p. 365.
FORMULA
1 + sqrt(3)/Pi - 36*arcsec(sqrt(3))^2/Pi^3.
EXAMPLE
0.4917152368747417606817470099858870229...
MATHEMATICA
RealDigits[1 + Sqrt[3]/Pi - 36*ArcSec[Sqrt[3]]^2/Pi^3, 10, 102] // First
CROSSREFS
KEYWORD
AUTHOR
Jean-François Alcover, Jun 05 2014
STATUS
approved