n written in fractional base 10/3.

Terms

a(0) =0a(1) =1a(2) =2a(3) =3a(4) =4a(5) =5a(6) =6a(7) =7a(8) =8a(9) =9a(10) =30a(11) =31a(12) =32a(13) =33a(14) =34a(15) =35a(16) =36a(17) =37a(18) =38a(19) =39a(20) =60a(21) =61a(22) =62a(23) =63a(24) =64a(25) =65a(26) =66a(27) =67a(28) =68a(29) =69