M000000250

$$\pi=-3324800\arctan\left(\frac{1}{1984933}\right)+8290744\arctan\left(\frac{1}{2478328}\right)+2018720\arctan\left(\frac{1}{3449051}\right)+6197876\arctan\left(\frac{1}{4417548}\right)-1933364\arctan\left(\frac{1}{8188568}\right)+2476996\arctan\left(\frac{1}{9305717}\right)-2476996\arctan\left(\frac{1}{9400802}\right)-2373800\arctan\left(\frac{1}{18975991}\right)+247656\arctan\left(\frac{1}{22709274}\right)-965656\arctan\left(\frac{1}{24208144}\right)-3166476\arctan\left(\frac{1}{25010458}\right)-503572\arctan\left(\frac{1}{201229582}\right)-865232\arctan\left(\frac{1}{2189376182}\right)$$