M000000205

$$\pi=87470320\arctan\left(\frac{2}{322564791}\right)-200970624\arctan\left(\frac{1}{168623905}\right)+490270708\arctan\left(\frac{1}{201229582}\right)+418962304\arctan\left(\frac{1}{284862638}\right)-276818336\arctan\left(\frac{1}{353566973}\right)+405585660\arctan\left(\frac{1}{778401733}\right)+140379400\arctan\left(\frac{1}{1514342682}\right)+46329268\arctan\left(\frac{2}{3340159163}\right)-30640352\arctan\left(\frac{2}{4204410541}\right)+132744600\arctan\left(\frac{1}{3866973557}\right)+196369028\arctan\left(\frac{1}{7427844818}\right)-192953320\arctan\left(\frac{1}{7959681215}\right)+196694160\arctan\left(\frac{2}{75525552427}\right)-49882276\arctan\left(\frac{1}{118034929852}\right)-338801156\arctan\left(\frac{1}{313329771682}\right)-142341188\arctan\left(\frac{2}{1087840667761}\right)+14140604\arctan\left(\frac{1}{169838669284032}\right)$$