Ternary equivalents of A109682.

Terms

a(0) =2a(1) =21a(2) =220a(3) =2222a(4) =22211a(5) =222210a(6) =2222212a(7) =22222201a(8) =222222200a(9) =2222222202a(10) =22222222221a(11) =222222222120