The quantity

(1) 
where is the Golden Ratio. The golden ratio conjugate is sometimes also called the Silver Ratio.
A quantity similar to the Feigenbaum Constant can be found for the th Continued Fraction representation

(2) 
Taking the limit of

(3) 
gives

(4) 
See also Golden Ratio, Silver Ratio
© 19969 Eric W. Weisstein
19990525