Answer
Diverges.
Work Step by Step
The series can be rewritten as:
$$
\sum_{n=1}^{\infty}\left(\frac{\pi^7}{e^8}\right)^{n}
$$
Which is a geometric series with $r=\frac{\pi^7}{e^8}\gt 1$ and hence it diverges.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.