This site is supported by donations to The OEIS Foundation.
l o g ( p ) = − ∑ n = 1 ∞ ∑ k = 1 p − 1 e 2 π i k n p n {\displaystyle log(p)=-\sum _{n=1}^{\infty }\sum _{k=1}^{p-1}{\frac {e^{2\pi i{\frac {kn}{p}}}}{n}}}