Decimal expansion of 2*Pi/21.

Terms

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