Period 2: repeat (6,8).

Terms

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