a(n) in base 15 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) =14a(15) =16a(16) =32a(17) =48a(18) =64a(19) =80a(20) =96a(21) =112a(22) =128a(23) =144a(24) =160a(25) =176a(26) =192a(27) =208a(28) =224a(29) =241