For all values of \(n\) the sum of \(n\) terms of a geometrical progression is \(\dfrac{3^n - 2^n}{2^{n-5}}\). Find its first term and common ratio.

For all values of \(n\) the sum of \(n\) terms of a geometrical progression is \(\dfrac{3^n - 2^n}{2^{n-5}}\). Find its first term and common ratio.