A382585 Decimal expansion of Sum_{p prime} 1/((p - 1)^2*p^2*(p + 1)).
0, 9, 0, 7, 7, 6, 5, 9, 9, 5, 3, 7, 0, 8, 8, 4, 2, 2, 3, 8, 0, 9, 3, 6, 9, 5, 8, 2, 5, 1, 8, 5, 3, 5, 9, 9, 0, 7, 8, 5, 3, 9, 7, 9, 8, 3, 5, 5, 0, 5, 0, 9, 7, 6, 6, 6, 4, 6, 9, 8, 8, 6, 3, 9, 1, 0, 2, 9, 1, 0, 5, 6, 6, 2, 4, 9, 1, 9, 7, 6, 8, 7, 9, 1, 2, 3, 7, 1, 2, 0, 1, 5, 5, 7, 4, 1, 1, 1, 6, 7, 9, 5, 1, 4, 2
Offset: 0
Examples
0.09077659953708842238093695825185359907853979835505...
Links
Programs
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PARI
sumeulerrat(1/((p-1)^2*p^2*(p+1))) \\ Amiram Eldar, Apr 01 2025
Formula
Equals Sum_{k>=3} (k-2) * (P(2*k-1) + P(2*k)), where P is the prime zeta function. - Amiram Eldar, Apr 01 2025