M000301
$$\pi=\frac{710423007324}{5}\arctan\left(\frac{2}{181932669739}\right)+\frac{5108337564}{5}\arctan\left(\frac{1}{148431551771}\right)+\frac{332682086048}{5}\arctan\left(\frac{1}{168722145007}\right)+\frac{469564255676}{5}\arctan\left(\frac{1}{202954204459}\right)+\frac{509033308472}{5}\arctan\left(\frac{1}{221943811240}\right)+\frac{35127438388}{5}\arctan\left(\frac{1}{250645741818}\right)+39977727128\arctan\left(\frac{1}{261217252912}\right)+\frac{299079800424}{5}\arctan\left(\frac{1}{269007136889}\right)+\frac{212853724728}{5}\arctan\left(\frac{1}{548275361132}\right)\frac{-468612987024}{5}\arctan\left(\frac{1}{662573197307}\right)\frac{-144943461156}{5}\arctan\left(\frac{1}{1372432573478}\right)\frac{-134901320908}{5}\arctan\left(\frac{1}{2105653391693}\right)-49699840956\arctan\left(\frac{1}{3761284561432}\right)+\frac{51284385576}{5}\arctan\left(\frac{1}{5142102426318}\right)\frac{-711399462252}{5}\arctan\left(\frac{1}{5745192731179}\right)+63463938620\arctan\left(\frac{2}{13078246979509}\right)\frac{-457996721136}{5}\arctan\left(\frac{1}{8589803519307}\right)\frac{-376129635828}{5}\arctan\left(\frac{1}{10892900268195}\right)\frac{-189310613624}{5}\arctan\left(\frac{1}{17780261434697}\right)-83437496688\arctan\left(\frac{1}{25331597869589}\right)+\frac{210742572164}{5}\arctan\left(\frac{1}{165171481279982}\right)+\frac{286775226856}{5}\arctan\left(\frac{1}{169838669284032}\right)\frac{-517057184692}{5}\arctan\left(\frac{1}{1948025182233307}\right)+\frac{163379287796}{5}\arctan\left(\frac{1}{1976865441422893}\right)$$