A324474 - OEIS

A324474 as a simple table

n	a(n)
1	1
2	2
3	10
4	20
5	100
6	101
7	200
8	201
9	1000
10	1001
11	1002
12	1010
13	2000
14	2001
15	2002
16	2010
17	10000
18	10001
19	10002
20	10010
21	10020
22	10100
23	10101
24	20000
25	20001
26	20002
27	20010
28	20020
29	20100
30	20101
31	100000
32	100001
33	100002
34	100010
35	100020
36	100100
37	100101
38	100200
39	100201

[1,2,10,20,100,101,200,201,1000,1001,1002,1010, 2000,2001,2002,2010,10000,10001,10002,10010,10020, 10100,10101,20000,20001,20002,20010,20020,20100, 20101,100000,100001,100002,100010,100020,100100, 100101,100200,100201]