Maximal base 3 run length is 4.

Terms

a(0) =40a(1) =80a(2) =81a(3) =120a(4) =122a(5) =161a(6) =162a(7) =202a(8) =240a(9) =241a(10) =244a(11) =245a(12) =283a(13) =323a(14) =324a(15) =360a(16) =361a(17) =362a(18) =366a(19) =367a(20) =368a(21) =404a(22) =405a(23) =445a(24) =483a(25) =484a(26) =487a(27) =488a(28) =526a(29) =566