M000000010

$$\pi=332\arctan\left(\frac{1}{107}\right)+68\arctan\left(\frac{1}{4443}\right)+136\arctan\left(\frac{1}{5726}\right)-20\arctan\left(\frac{1}{110443}\right)+20\arctan\left(\frac{1}{4841182}\right)-136\arctan\left(\frac{1}{1737720807}\right)$$