Period 2: repeat (0,3).

Terms

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