A088574 - OEIS

A088574 as a simple table

n	a(n)
1	19
2	90
3	99
4	109
5	901
6	902
7	909
8	1009
9	1019
10	1029
11	1091
12	1092
13	1099
14	1109
15	1209
16	1901
17	1902
18	1909
19	2019
20	2091
21	2109
22	2901
23	9001
24	9009
25	9011
26	9012
27	9019
28	9021
29	9091
30	9099
31	9101
32	9102
33	9109
34	9201
35	9901
36	9909
37	10009
38	10019
39	10029
40	10091
41	10092
42	10099

[19,90,99,109,901,902,909,1009,1019,1029,1091, 1092,1099,1109,1209,1901,1902,1909,2019,2091,2109, 2901,9001,9009,9011,9012,9019,9021,9091,9099,9101, 9102,9109,9201,9901,9909,10009,10019,10029,10091, 10092,10099]