Proof that $(1-\zeta(1-p,p))/p$ is an integer?

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For all primes $p>2$, does the following identity

$$\frac{1-\zeta(1-p,p)}{p}\in\mathbb{Z}$$

hold such that $\zeta(s,a)$ denotes the Hurwitz zeta function? If so, how would I go about formulating a proof (or is there a proof already in the literature)? Any help would be much appreciated.

The first few values are

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