Smallest number whose sum of digits is n.

Terms

a(0) =0a(1) =1a(2) =2a(3) =3a(4) =4a(5) =5a(6) =6a(7) =7a(8) =8a(9) =9a(10) =19a(11) =29a(12) =39a(13) =49a(14) =59a(15) =69a(16) =79a(17) =89a(18) =99a(19) =199a(20) =299a(21) =399a(22) =499a(23) =599a(24) =699a(25) =799a(26) =899a(27) =999a(28) =1999a(29) =2999