<br><br> $$ \Huge \frac{1}{\pi} = \frac{2\sqrt{2}}{9801} \sum_{n=0}^\infty \frac{(4n)! \, (1103 + 26390n)}{(n!)^4 \, 396^{4n}} $$ <br><br> $$ \Huge \pi = \frac{9801}{1103\sqrt{8}} $$ <br><br> 