M000000143

$$\pi=10438408\arctan\left(\frac{1}{3014557}\right)-1073324\arctan\left(\frac{2}{16840821}\right)-1239128\arctan\left(\frac{1}{24208144}\right)+184140\arctan\left(\frac{1}{54610269}\right)-1310044\arctan\left(\frac{1}{63199427}\right)-10283920\arctan\left(\frac{1}{100656977}\right)-4169040\arctan\left(\frac{1}{115453918}\right)+1166952\arctan\left(\frac{2}{322564791}\right)+4516132\arctan\left(\frac{1}{385231007}\right)-1355720\arctan\left(\frac{1}{1304967682}\right)-3921384\arctan\left(\frac{2}{4532659739}\right)-7681544\arctan\left(\frac{2}{4949475989}\right)+2115052\arctan\left(\frac{1}{18986886768}\right)+4327364\arctan\left(\frac{2}{520629831511}\right)$$