M000000179

$$\pi=1536424\arctan\left(\frac{1}{2484568}\right)+8670576\arctan\left(\frac{1}{4218932}\right)+5793692\arctan\left(\frac{1}{11612398}\right)-544044\arctan\left(\frac{1}{34713882}\right)+612100\arctan\left(\frac{1}{55153444}\right)+841916\arctan\left(\frac{1}{71894857}\right)-4965944\arctan\left(\frac{1}{113014933}\right)-841916\arctan\left(\frac{1}{139073057}\right)+3265308\arctan\left(\frac{1}{226983307}\right)-1948340\arctan\left(\frac{1}{1085592682}\right)-821128\arctan\left(\frac{1}{2701984943}\right)-4555140\arctan\left(\frac{1}{5475957057}\right)+4261076\arctan\left(\frac{1}{6436804193}\right)-1896904\arctan\left(\frac{1}{14033378718}\right)$$