M000000141

$$\pi=3948772\arctan\left(\frac{1}{2789116}\right)+8805204\arctan\left(\frac{1}{3549443}\right)-4349676\arctan\left(\frac{1}{5033696}\right)+1385052\arctan\left(\frac{1}{6826318}\right)-2038484\arctan\left(\frac{1}{36313568}\right)-3531984\arctan\left(\frac{1}{152087733}\right)-3682000\arctan\left(\frac{1}{213255960}\right)+1634748\arctan\left(\frac{2}{437556239}\right)-1108192\arctan\left(\frac{1}{284862638}\right)-1599988\arctan\left(\frac{1}{1125440538}\right)+1564116\arctan\left(\frac{1}{2123253543}\right)+705728\arctan\left(\frac{1}{66492889557}\right)+2109116\arctan\left(\frac{1}{138873731225}\right)+3044660\arctan\left(\frac{1}{169838669284032}\right)$$