OFFSET
0,1
LINKS
Steven R. Finch, Errata and Addenda to Mathematical Constants. p. 2.
S. R. Holcombe, A product representation for Pi, arXiv:1204.2451 [math.NT], 2012.
EXAMPLE
0.76119387834763207605237256389850699513971912053...
MAPLE
evalf(product((1-1/n^2)^(n^2)/(1-1/(4*n^2))^(4*n^2), n=2..infinity), 100) # Vaclav Kotesovec, Sep 17 2014
MATHEMATICA
RealDigits[(9^2/2^9)*Pi*Exp[7*Zeta[3]/(2*Pi^2)], 10, 100] // First
CROSSREFS
KEYWORD
AUTHOR
Jean-François Alcover, Sep 17 2014
STATUS
approved