Pagoda sequence: a(0) = b(n)-b(n-2) mod 3, where b(n) = A038189(n).

Terms

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