Are there some known results for $\sum\limits_{p\text{ prime}} \dfrac{1}{p^2-1}$? I wasn't able to find anything about this sum in the internet or in my books!
2026-05-05 16:43:47.1777999427
What is known about$\sum\limits_{p\text{ prime}} \frac{1}{p^2-1}$?
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