Inverted decimal expansion of Pi.

Terms

a(0) =11a(1) =2a(2) =-11a(3) =-3a(4) =4a(5) =-7a(6) =-28a(7) =7a(8) =-12a(9) =-3a(10) =-3a(11) =-4a(12) =-3a(13) =5a(14) =3a(15) =8a(16) =-3a(17) =26a(18) =-8a(19) =4a(20) =-7a(21) =15a(22) =6a(23) =8a(24) =-4a(25) =5a(26) =4a(27) =-4a(28) =-3a(29) =-347