M000040

$$\pi=166\arctan\left(\frac{1}{53}\right)+68\arctan\left(\frac{1}{4443}\right)-30\arctan\left(\frac{1}{5726}\right)-20\arctan\left(\frac{2}{226043}\right)+30\arctan\left(\frac{1}{1737720807}\right)-20\arctan\left(\frac{1}{109027476193}\right)+20\arctan\left(\frac{2}{3375905320682366575989}\right)$$