M000236
$$\pi=1488450788\arctan\left(\frac{2}{3472598789}\right)+2069272524\arctan\left(\frac{2}{4074292887}\right)+1830887820\arctan\left(\frac{1}{4038832337}\right)+5028624338\arctan\left(\frac{2}{12800795261}\right)-131706546\arctan\left(\frac{1}{6608082112}\right)-2248139894\arctan\left(\frac{1}{18710140581}\right)-27200072\arctan\left(\frac{1}{24139206772}\right)+1528675280\arctan\left(\frac{1}{29546599818}\right)+4879569650\arctan\left(\frac{2}{112899039159}\right)+1561876482\arctan\left(\frac{1}{71354040503}\right)-1197156014\arctan\left(\frac{1}{225891903693}\right)+5427524066\arctan\left(\frac{1}{265542904947}\right)-1743789234\arctan\left(\frac{1}{378137211957}\right)+1621337174\arctan\left(\frac{1}{1053586529897}\right)-4147553548\arctan\left(\frac{1}{2554104718836}\right)-2839961306\arctan\left(\frac{1}{3737240479718}\right)+3193698874\arctan\left(\frac{1}{3931260155877}\right)-1293364410\arctan\left(\frac{1}{11830545643782}\right)+3593562412\arctan\left(\frac{1}{12433164124467}\right)+1229416634\arctan\left(\frac{1}{28148191112477}\right)$$