M000000249

$$\pi=3282161352\arctan\left(\frac{1}{1454097393}\right)+1796754096\arctan\left(\frac{2}{5493779561}\right)-262541244\arctan\left(\frac{1}{4038832337}\right)-48258860\arctan\left(\frac{1}{4474115807}\right)-1957462428\arctan\left(\frac{1}{6608082112}\right)+2390049812\arctan\left(\frac{2}{16758521543}\right)+2782654088\arctan\left(\frac{2}{36523075989}\right)+229449136\arctan\left(\frac{1}{18710140581}\right)+2406487236\arctan\left(\frac{1}{29546599818}\right)+853709636\arctan\left(\frac{1}{38185029043}\right)+1507140800\arctan\left(\frac{2}{112899039159}\right)+3546521480\arctan\left(\frac{1}{193271326807}\right)+2603175604\arctan\left(\frac{1}{265542904947}\right)-2494757392\arctan\left(\frac{1}{378137211957}\right)+685716688\arctan\left(\frac{1}{3737240479718}\right)+2947084480\arctan\left(\frac{1}{8256835333313}\right)-299718500\arctan\left(\frac{1}{10041983931693}\right)-2819401792\arctan\left(\frac{1}{11830545643782}\right)+4324905012\arctan\left(\frac{1}{46150510628682}\right)+1353663992\arctan\left(\frac{1}{69971515635443}\right)$$