-1 + n -1 + 8 ----------------------------- 2 -1 + n / -1 + n\ n 2 + \1 + 2 / - 2
-3 + 3*n -1 + 2 ----------------------------- 2 -1 + n / -1 + n\ n 2 + \1 + 2 / - 2
(-1.0 + 8.0^(-1.0 + n))/(2.0^(-1.0 + n) + (1.0 + 2.0^(-1.0 + n))^2 - 2.0^n)
-1 + n -1 + 8 ----------------------------- 2 -1 + n / -1 + n\ n 2 + \1 + 2 / - 2
n - 1 -1 + 8 --------------------------- 2 n - 1 / n - 1 \ n 2 + \2 + 1/ - 2