A239018 - OEIS

A239018 as a simple table

n	a(n)
1	11
2	22
3	33
4	111
5	222
6	333
7	1111
8	1212
9	1313
10	2121
11	2222
12	2323
13	3131
14	3232
15	3333
16	11111
17	22222
18	33333
19	111111
20	112112
21	113113
22	121121
23	121212
24	122122
25	123123
26	131131
27	131313
28	132132
29	133133
30	211211
31	212121
32	212212
33	213213
34	221221
35	222222
36	223223
37	231231
38	232232
39	232323
40	233233
41	311311
42	312312
43	313131
44	313313

[11,22,33,111,222,333,1111,1212,1313,2121,2222, 2323,3131,3232,3333,11111,22222,33333,111111, 112112,113113,121121,121212,122122,123123,131131, 131313,132132,133133,211211,212121,212212,213213, 221221,222222,223223,231231,232232,232323,233233, 311311,312312,313131,313313]