a(n) in base 14 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) =13a(14) =15a(15) =30a(16) =45a(17) =60a(18) =75a(19) =90a(20) =105a(21) =120a(22) =135a(23) =150a(24) =165a(25) =180a(26) =195a(27) =211a(28) =422a(29) =633