M000483

$$\pi=93628\arctan\left(\frac{1}{44179}\right)+24224\arctan\left(\frac{1}{85353}\right)+81852\arctan\left(\frac{1}{114669}\right)-9628\arctan\left(\frac{1}{129553}\right)+43832\arctan\left(\frac{1}{330182}\right)-15388\arctan\left(\frac{1}{485298}\right)+1592\arctan\left(\frac{1}{780262}\right)-17428\arctan\left(\frac{1}{4218932}\right)-47268\arctan\left(\frac{1}{5982670}\right)+75916\arctan\left(\frac{1}{9548768}\right)$$