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Piecewise Function Sum 2

Let \[f(n) = \left\{ \begin{array}{cl} n^3+2n-1 &\text{ if }n>1, \\ n-1 &\text{ if }n \le 1.\end{array} \right.\] Find $ f(0)+f(1)+f(2) $.

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$\frac{a}{b}$
.
0
=
%

$a^n$
$a^{\circ}$
$a_n$
$\sqrt{}$
$\sqrt[n]{}$
$\pi$
$\ln{}$
$\log$
$\theta$
$\sin{}$
$\cos{}$
$\tan{}$

$($
$)$
$[$
$]$
$\cap$
$\cup$
$,$
$\infty$