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2017 AIME II Question 8

AIME · 2017 AIME II

Question 8

Find the number of positive integers $n$ less than $2017$ such that $$
\begin{aligned} &1 + n + \frac{n^2}{2!} + \frac{n^3}{3!} + \frac{n^4}{4!} \\ &{}+ \frac{n^5}{5!} + \frac{n^6}{6!} \end{aligned}
$$ is an integer.