On the series expansion of the prime zeta function about $s=1$ and its coefficients

In this article, we derive a series expansion of the prime zeta function about the $s=1$ logarithmic singularity and prove general formula for its expansion coefficients, which is similar to the Stieltjes expansion coefficients for the Riemann zeta function. These results can also be viewed as a generalization of Mertens’s Theorems to higher order. We also numerically verify and compute the presented formulas to high precision for several test cases.