Numbers whose consecutive digits differ by 5.

Terms

a(0) =0a(1) =1a(2) =2a(3) =3a(4) =4a(5) =5a(6) =6a(7) =7a(8) =8a(9) =9a(10) =16a(11) =27a(12) =38a(13) =49a(14) =50a(15) =61a(16) =72a(17) =83a(18) =94a(19) =161a(20) =272a(21) =383a(22) =494a(23) =505a(24) =616a(25) =727a(26) =838a(27) =949a(28) =1616a(29) =2727