M000000090

$$\pi=1036\arctan\left(\frac{2}{4989}\right)+5760\arctan\left(\frac{1}{2673}\right)+7224\arctan\left(\frac{1}{12943}\right)+1592\arctan\left(\frac{2}{362619}\right)+7508\arctan\left(\frac{2}{2885139}\right)-732\arctan\left(\frac{1}{1610057}\right)-1592\arctan\left(\frac{1}{6826318}\right)-4120\arctan\left(\frac{1}{103224943}\right)$$