a(n) in base 12 is a repdigit.

Terms

a(0) =0a(1) =1a(2) =2a(3) =3a(4) =4a(5) =5a(6) =6a(7) =7a(8) =8a(9) =9a(10) =10a(11) =11a(12) =13a(13) =26a(14) =39a(15) =52a(16) =65a(17) =78a(18) =91a(19) =104a(20) =117a(21) =130a(22) =143a(23) =157a(24) =314a(25) =471a(26) =628a(27) =785a(28) =942a(29) =1099