M000000026

$$\pi=332\arctan\left(\frac{1}{107}\right)+68\arctan\left(\frac{1}{4443}\right)+272\arctan\left(\frac{1}{11343}\right)-20\arctan\left(\frac{1}{110443}\right)-136\arctan\left(\frac{1}{595667}\right)+20\arctan\left(\frac{1}{4841182}\right)$$