Qn=((Qn-1(x))2-1)/(Qn-2(x)), where Q0=1 and Q1=x
The n, n-1, n-2, 0, and 1 following the Q's are all subscript.
The objective is to show that for all positive integers n>1, Qn is a polynomial with an integer coefficient.
I've been fiddling with random maths trying to figure something out, but I don't even know how I would write a conclusion to this problem.