Powers of 3 written in base 6.

Terms

a(0) =1a(1) =3a(2) =13a(3) =43a(4) =213a(5) =1043a(6) =3213a(7) =14043a(8) =50213a(9) =231043a(10) =1133213a(11) =3444043a(12) =15220213a(13) =54101043a(14) =250303213a(15) =1231314043a(16) =4134350213a(17) =20451531043a(18) =102235433213a(19) =311155144043