n written in fractional base 8/6.

Terms

a(0) =0a(1) =1a(2) =2a(3) =3a(4) =4a(5) =5a(6) =6a(7) =7a(8) =60a(9) =61a(10) =62a(11) =63a(12) =64a(13) =65a(14) =66a(15) =67a(16) =640a(17) =641a(18) =642a(19) =643a(20) =644a(21) =645a(22) =646a(23) =647a(24) =6420a(25) =6421a(26) =6422a(27) =6423a(28) =6424a(29) =6425