M000000151

$$\pi=3562556\arctan\left(\frac{1}{1984933}\right)+3336752\arctan\left(\frac{2}{8649761}\right)+5209624\arctan\left(\frac{1}{5033696}\right)-3866728\arctan\left(\frac{1}{11280443}\right)-4850796\arctan\left(\frac{1}{18975991}\right)+333012\arctan\left(\frac{1}{22709274}\right)+2840580\arctan\left(\frac{1}{24208144}\right)+384128\arctan\left(\frac{2}{75804661}\right)+2562352\arctan\left(\frac{1}{168623905}\right)-2980568\arctan\left(\frac{1}{201229582}\right)-2476996\arctan\left(\frac{1}{546365045}\right)+1611764\arctan\left(\frac{1}{2189376182}\right)+543632\arctan\left(\frac{1}{164432798314}\right)$$