M000000269

$$\pi=\frac{52786375958}{3}\arctan\left(\frac{2}{10355370165}\right)-4365018708\arctan\left(\frac{1}{32863722478}\right)\frac{-12692328628}{3}\arctan\left(\frac{2}{86479075199}\right)\frac{-8941158260}{3}\arctan\left(\frac{2}{112899039159}\right)-8798592338\arctan\left(\frac{1}{71617196968}\right)+\frac{24658233712}{3}\arctan\left(\frac{1}{78535779057}\right)+1363211624\arctan\left(\frac{1}{102428655030}\right)+9939054248\arctan\left(\frac{1}{197877956739}\right)+\frac{14921040158}{3}\arctan\left(\frac{1}{208853282318}\right)\frac{-14121251950}{3}\arctan\left(\frac{1}{225891903693}\right)+\frac{5457604166}{3}\arctan\left(\frac{1}{283378114193}\right)-6453334162\arctan\left(\frac{1}{324363564309}\right)-4573919242\arctan\left(\frac{1}{469027618483}\right)\frac{-5926790744}{3}\arctan\left(\frac{1}{492806748932}\right)+1925900920\arctan\left(\frac{1}{821345641657}\right)+\frac{35078904628}{3}\arctan\left(\frac{1}{3737240479718}\right)+\frac{8522331868}{3}\arctan\left(\frac{1}{28148191112477}\right)+3319338608\arctan\left(\frac{1}{55707370528529}\right)\frac{-5118783910}{3}\arctan\left(\frac{1}{69971515635443}\right)+\frac{14921040158}{3}\arctan\left(\frac{1}{74541849600668}\right)\frac{-7963373228}{3}\arctan\left(\frac{1}{109805699900318}\right)\frac{-3042177050}{3}\arctan\left(\frac{1}{7474541196075273}\right)$$