If d,e are consecutive digits of n in base 12, then |d-e|>=4.

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =5a(5) =6a(6) =7a(7) =8a(8) =9a(9) =10a(10) =11a(11) =17a(12) =18a(13) =19a(14) =20a(15) =21a(16) =22a(17) =23a(18) =30a(19) =31a(20) =32a(21) =33a(22) =34a(23) =35a(24) =43a(25) =44a(26) =45a(27) =46a(28) =47a(29) =48