a(n) in base 13 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) =12a(13) =14a(14) =28a(15) =42a(16) =56a(17) =70a(18) =84a(19) =98a(20) =112a(21) =126a(22) =140a(23) =154a(24) =168a(25) =183a(26) =366a(27) =549a(28) =732a(29) =915