M000000022

$$\pi=332\arctan\left(\frac{1}{107}\right)+68\arctan\left(\frac{1}{4443}\right)+272\arctan\left(\frac{1}{11343}\right)-20\arctan\left(\frac{2}{226043}\right)-136\arctan\left(\frac{1}{595667}\right)-20\arctan\left(\frac{1}{109027476193}\right)+20\arctan\left(\frac{2}{3375905320682366575989}\right)$$