n written in fractional base 9/7.

Terms

a(0) =0a(1) =1a(2) =2a(3) =3a(4) =4a(5) =5a(6) =6a(7) =7a(8) =8a(9) =70a(10) =71a(11) =72a(12) =73a(13) =74a(14) =75a(15) =76a(16) =77a(17) =78a(18) =750a(19) =751a(20) =752a(21) =753a(22) =754a(23) =755a(24) =756a(25) =757a(26) =758a(27) =7530a(28) =7531a(29) =7532