khinchin top-level constant

const khinchin = 2.6854520010653064453097148354817956938203822939944629530511523455572188595371520028011

The Khinchin constant

Remarks

prod(k=1 -> inf){1+1/(k*(k+2))^log(k,2)}

Implementation

const double khinchin =
    2.6854520010653064453097148354817956938203822939944629530511523455572188595371520028011