M000000299

$$\pi=141102100880\arctan\left(\frac{1}{104279454193}\right)+127399961116\arctan\left(\frac{1}{108813338187}\right)-33024050288\arctan\left(\frac{1}{113201494333}\right)-241091212\arctan\left(\frac{1}{157245105893}\right)+42329196788\arctan\left(\frac{1}{166846193428}\right)+38242514920\arctan\left(\frac{1}{195681621507}\right)+49849123712\arctan\left(\frac{2}{393707737329}\right)+35747263884\arctan\left(\frac{1}{432529546649}\right)+1748814192\arctan\left(\frac{1}{501226901209}\right)+24465143824\arctan\left(\frac{2}{1771130530361}\right)-4159323188\arctan\left(\frac{1}{1273911086135}\right)+122570693772\arctan\left(\frac{1}{1921044951457}\right)+50182226604\arctan\left(\frac{1}{2359916741811}\right)+3793263216\arctan\left(\frac{1}{2723656442157}\right)+22617147608\arctan\left(\frac{2}{8914226121489}\right)+124211740732\arctan\left(\frac{1}{5688475754312}\right)-49422053688\arctan\left(\frac{2}{14158549277239}\right)-59981805880\arctan\left(\frac{1}{12083508387829}\right)-48757956260\arctan\left(\frac{1}{15962244871097}\right)+1960938488\arctan\left(\frac{1}{159162340999667}\right)-51103729404\arctan\left(\frac{1}{180481359172943}\right)-7400483336\arctan\left(\frac{1}{389928169608307}\right)-3732253164\arctan\left(\frac{1}{4204987898062723}\right)-66635209176\arctan\left(\frac{1}{4439568777547493}\right)$$