a(n) is the first member of A106843 with sum of digits n.

Terms

a(0) =2a(1) =3a(2) =13a(3) =5a(4) =6a(5) =7a(6) =17a(7) =9a(8) =19a(9) =29a(10) =39a(11) =67a(12) =59a(13) =69a(14) =79a(15) =89a(16) =99a(17) =199a(18) =389a(19) =489a(20) =499a(21) =599a(22) =699a(23) =997a(24) =1889a(25) =999a(26) =1999a(27) =2999a(28) =4989a(29) =4999