Period 2: repeat (0,6).

Terms

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