M000000058

$$\pi=366\arctan\left(\frac{1}{109}\right)-238\arctan\left(\frac{1}{1023}\right)+94\arctan\left(\frac{1}{5832}\right)+48\arctan\left(\frac{1}{110443}\right)-48\arctan\left(\frac{1}{4841182}\right)-34\arctan\left(\frac{1}{6826318}\right)$$