M000245

$$\pi=-1843772048\arctan\left(\frac{1}{2112819717}\right)+4012126044\arctan\left(\frac{1}{2420845318}\right)+2234736180\arctan\left(\frac{2}{4895309741}\right)+226473660\arctan\left(\frac{2}{7850392761}\right)+7581289880\arctan\left(\frac{1}{3985944689}\right)-5591138076\arctan\left(\frac{1}{6608082112}\right)+1598972784\arctan\left(\frac{1}{9396687283}\right)+5703707900\arctan\left(\frac{1}{29777042712}\right)+706514292\arctan\left(\frac{2}{86479075199}\right)-1809931544\arctan\left(\frac{2}{112899039159}\right)+964926828\arctan\left(\frac{1}{225891903693}\right)-2763514532\arctan\left(\frac{1}{283378114193}\right)+905334488\arctan\left(\frac{2}{632886751489}\right)-3723186968\arctan\left(\frac{1}{324363564309}\right)-540597244\arctan\left(\frac{1}{573904314793}\right)+562689296\arctan\left(\frac{1}{821345641657}\right)-4256669744\arctan\left(\frac{1}{3737240479718}\right)-5125933400\arctan\left(\frac{1}{28148191112477}\right)+613451828\arctan\left(\frac{1}{69971515635443}\right)-6661547396\arctan\left(\frac{1}{7474541196075273}\right)$$