Ternary numbers consisting of a run of 1's, then a run of 0's, then a run of 2's.

Terms

a(0) =102a(1) =1002a(2) =1022a(3) =1102a(4) =10002a(5) =10022a(6) =10222a(7) =11002a(8) =11022a(9) =11102a(10) =100002a(11) =100022a(12) =100222a(13) =102222a(14) =110002a(15) =110022a(16) =110222a(17) =111002a(18) =111022a(19) =111102a(20) =1000002a(21) =1000022a(22) =1000222a(23) =1002222a(24) =1022222a(25) =1100002a(26) =1100022a(27) =1100222a(28) =1102222a(29) =1110002