M000000072

$$\pi=38324\arctan\left(\frac{1}{12943}\right)+2880\arctan\left(\frac{1}{57473}\right)+16472\arctan\left(\frac{1}{131168}\right)-5204\arctan\left(\frac{2}{362619}\right)+6796\arctan\left(\frac{1}{1065376}\right)+32848\arctan\left(\frac{2}{2885139}\right)+8944\arctan\left(\frac{1}{1610057}\right)-5508\arctan\left(\frac{1}{6826318}\right)-28424\arctan\left(\frac{1}{103224943}\right)$$