# Recursive Series

Am I doing this right? What's a good way to think about the different f(n)'s. f(n + 1) is the "next" element in the series? f(n) is the current element? The previous element?

Find $f(1), f(3), f(4),$ and $f(5)$ if $f(n)$ is defined recursively by $f(0) = 3$ and for $n = 0,1,2...$

[a.] $f(n+1) = -2f(n)$