Pierce expansion for 1 / Pi.

Terms

a(0) =3a(1) =22a(2) =118a(3) =383a(4) =571a(5) =635a(6) =70529a(7) =375687a(8) =399380a(9) =575584a(10) =699357a(11) =1561065a(12) =1795712a(13) =194445473a(14) =253745996a(15) =3199003690a(16) =3727084011a(17) =6607433185a(18) =16248462801a(19) =172940584814a(20) =313728984965a(21) =796022309187