M000000111

$$\pi=1308\arctan\left(\frac{1}{463}\right)+616\arctan\left(\frac{1}{1407}\right)-244\arctan\left(\frac{2}{3351}\right)+128\arctan\left(\frac{2}{13489}\right)+732\arctan\left(\frac{2}{234881}\right)-332\arctan\left(\frac{1}{390112}\right)$$