So the series looks something like this:
[tex]\Sigma_{n=4}^{\infty}\frac{n-1}{16} \\
\frac{1}{16}\Sigma_{n=4}^{\infty}n-1[/tex]
If [tex]\lim_{n\rightarrow\infty}\neq[/tex] than [tex]\Sigma{a_n}[/tex] diverges. So we must apply limit infinity property:
[tex]\lim_{n\rightarrow\infty}(ax^n+\dots+bx+c)=\infty, a>0[/tex] and n is odd.
So...
[tex]\lim_{n\rightarrow\infty}n-1=\infty[/tex]
The series diverges.
Hope this helps.
r3t40
