  While there is not much publications, about degree sixteen Diophantine
equation we do have an identity given by Ramanujan (ref. #1). Also on the
internet even though there are numerical solutions to degree sixteen for eg.
(16-7-24) equation (ref. #5) there are hardly any parametric solutions. An
Octic degree parameterization has been arrived at by Choudhry & Zagar (ref. 2).
The authors have given a parametric solution to the equation
(a^4-b^4)(c^4-d^4)(e^8-f^8)=(u^4-v^4)(w^4-x^4)(y^8-z^8). We have also given
numerical solution but because of the high degree (sixteen) of the equation we
only get a minimum integer value for the variables at more than five digits. We
have also given some new identities related to degree four & eight.
