M000000295

$$\pi=143303585484\arctan\left(\frac{1}{102428655030}\right)+177654726720\arctan\left(\frac{1}{121409547033}\right)-20156995508\arctan\left(\frac{1}{138873731225}\right)-71666320764\arctan\left(\frac{1}{202954204459}\right)+197046098368\arctan\left(\frac{1}{218123852367}\right)-118981813216\arctan\left(\frac{1}{250645741818}\right)-23807459608\arctan\left(\frac{1}{261002206018}\right)+7129268172\arctan\left(\frac{1}{269007136889}\right)+85503479620\arctan\left(\frac{1}{548275361132}\right)+99772327304\arctan\left(\frac{1}{656902304557}\right)+134946784800\arctan\left(\frac{1}{1372432573478}\right)+10681587964\arctan\left(\frac{1}{1622274975907}\right)+18054250312\arctan\left(\frac{1}{2710120765097}\right)-73723529348\arctan\left(\frac{1}{3761284561432}\right)-43255881504\arctan\left(\frac{2}{13078246979509}\right)+117031727376\arctan\left(\frac{1}{8589803519307}\right)+27151606532\arctan\left(\frac{1}{10892900268195}\right)+6850245184\arctan\left(\frac{1}{17780261434697}\right)+72987354108\arctan\left(\frac{1}{38759264489343}\right)+117876672824\arctan\left(\frac{1}{69971515635443}\right)+54986941560\arctan\left(\frac{1}{169838669284032}\right)-38967442224\arctan\left(\frac{1}{342036110675693}\right)+86404582684\arctan\left(\frac{1}{772654028018543}\right)-12796568888\arctan\left(\frac{1}{1948025182233307}\right)$$