OFFSET
0,1
REFERENCES
Steven R. Finch, Mathematical Constants, Cambridge University Press, 2003, p. 277.
LINKS
Eric Weisstein's MathWorld, Primitive Pythagorean Triple
FORMULA
(1/sqrt(2*Pi^5))*GAMMA(1/4)^2.
EXAMPLE
0.531339949958421825591245097552256...
MATHEMATICA
RealDigits[1/Sqrt[2*Pi^5]*Gamma[1/4]^2 , 10, 100] // First
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
Jean-François Alcover, May 14 2014
STATUS
approved