M000000219

$$\pi=128769838\arctan\left(\frac{2}{322564791}\right)+112304934\arctan\left(\frac{1}{168623905}\right)+116927758\arctan\left(\frac{1}{201229582}\right)+393003268\arctan\left(\frac{1}{284862638}\right)-138041294\arctan\left(\frac{2}{604534317}\right)+59480454\arctan\left(\frac{1}{687606629}\right)-128130604\arctan\left(\frac{1}{909140573}\right)+45137154\arctan\left(\frac{1}{1304967682}\right)+112818006\arctan\left(\frac{1}{2189376182}\right)+231361570\arctan\left(\frac{2}{4532659739}\right)+49333982\arctan\left(\frac{1}{3261365450}\right)+203211756\arctan\left(\frac{1}{7427844818}\right)-120134784\arctan\left(\frac{1}{27354282288}\right)+109401374\arctan\left(\frac{1}{71617196968}\right)-61259506\arctan\left(\frac{2}{520629831511}\right)+12335390\arctan\left(\frac{1}{1197009532318}\right)-1074262\arctan\left(\frac{1}{169838669284032}\right)$$