Period 2: repeat (0,10).

Terms

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