M000000076

$$\pi=3740\arctan\left(\frac{1}{1393}\right)+1288\arctan\left(\frac{1}{3748}\right)+624\arctan\left(\frac{1}{12943}\right)+2120\arctan\left(\frac{1}{32807}\right)+176\arctan\left(\frac{1}{1049433}\right)+1592\arctan\left(\frac{1}{23053977}\right)+1288\arctan\left(\frac{1}{58995773}\right)+1592\arctan\left(\frac{1}{683222322447137}\right)-1592\arctan\left(\frac{1}{550439606940346127492293}\right)$$