M000000103

$$\pi=5028\arctan\left(\frac{1}{2943}\right)+11064\arctan\left(\frac{1}{7535}\right)+1592\arctan\left(\frac{1}{37532}\right)-4424\arctan\left(\frac{2}{142211}\right)-3692\arctan\left(\frac{1}{167318}\right)+3964\arctan\left(\frac{1}{664373}\right)+2832\arctan\left(\frac{1}{3484681}\right)-908\arctan\left(\frac{1}{7042807}\right)$$