M000000198

$$\pi=58429812\arctan\left(\frac{1}{101545101}\right)+137352596\arctan\left(\frac{2}{322564791}\right)+230870272\arctan\left(\frac{1}{201229582}\right)+214438672\arctan\left(\frac{1}{284862638}\right)-113822288\arctan\left(\frac{1}{546365045}\right)-31164184\arctan\left(\frac{1}{1514342682}\right)-89070164\arctan\left(\frac{2}{4204410541}\right)+130724516\arctan\left(\frac{2}{11352069609}\right)+257958916\arctan\left(\frac{1}{6421564557}\right)+50275208\arctan\left(\frac{1}{7427844818}\right)+166727340\arctan\left(\frac{1}{7959681215}\right)-29002772\arctan\left(\frac{1}{26568385532}\right)+42052804\arctan\left(\frac{2}{75525552427}\right)-267022124\arctan\left(\frac{2}{108928448489}\right)-87856852\arctan\left(\frac{1}{343925859568}\right)-13149596\arctan\left(\frac{2}{1087840667761}\right)-85623948\arctan\left(\frac{1}{169838669284032}\right)$$