n written in fractional base 6/3.

Terms

a(0) =0a(1) =1a(2) =2a(3) =3a(4) =4a(5) =5a(6) =30a(7) =31a(8) =32a(9) =33a(10) =34a(11) =35a(12) =300a(13) =301a(14) =302a(15) =303a(16) =304a(17) =305a(18) =330a(19) =331a(20) =332a(21) =333a(22) =334a(23) =335a(24) =3000a(25) =3001a(26) =3002a(27) =3003a(28) =3004a(29) =3005