n written in fractional base 10/5.

Terms

a(0) =0a(1) =1a(2) =2a(3) =3a(4) =4a(5) =5a(6) =6a(7) =7a(8) =8a(9) =9a(10) =50a(11) =51a(12) =52a(13) =53a(14) =54a(15) =55a(16) =56a(17) =57a(18) =58a(19) =59a(20) =500a(21) =501a(22) =502a(23) =503a(24) =504a(25) =505a(26) =506a(27) =507a(28) =508a(29) =509