Existence, uniqueness and attractivity of prime period two solution for a difference equation of exponential form

In this paper we study the existence, uniqueness and attractivity of prime period two solution of the difference equationxn+1=a+bxn-1e-xnxn+1=a+bxn-1e-xnwhere a,b are positive constants and the initial values x-1,x0 are positive numbers.