A slow converging serie
Public  09/27/15  12xp  Math  100.0% 
P is the set of prime numbers
Let S = $ \sum_{p \in P} \frac {1}{1+p^2} = 0.3890595553 \dots $
Find the value of S with a precision of 50 digits after the decimal point (truncated not rounded).
[My timing: 15 sec]
Let S = $ \sum_{p \in P} \frac {1}{1+p^2} = 0.3890595553 \dots $
Find the value of S with a precision of 50 digits after the decimal point (truncated not rounded).
[My timing: 15 sec]
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