Period 2: repeat (2,8).

Terms

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