8^a(n) is smallest power of 8 beginning with n.

Terms

a(0) =0a(1) =6a(2) =5a(3) =4a(4) =3a(5) =2a(6) =22a(7) =1a(8) =21a(9) =10a(10) =20a(11) =30a(12) =9a(13) =19a(14) =29a(15) =8a(16) =49a(17) =18a(18) =28a(19) =7a(20) =110a(21) =17a(22) =58a(23) =27a(24) =37a(25) =6a(26) =47a(27) =16a(28) =57a(29) =26