How to make an exponential function taking as input a vector?

For example, if my vector is: [2], I'd like to convert this into:

[1,n]. Then, if input is:[3] -> [1,n,n^2] and so on...

Answer 1

[John D'Errico]

inp = 3;

syms n
n.^(0:inp-1)

ans =
[ 1, n, n^2]