A083115 - OEIS

A083115 as a simple table

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	11
11	22
12	33
13	111
14	121
15	131
16	141
17	151
18	161
19	171
20	191
21	212
22	222
23	313
24	1111
25	1221
26	1331
27	2112
28	3113
29	11111
30	11211
31	11311
32	11411
33	11511
34	11711
35	12121
36	12221
37	13131
38	21112
39	21212
40	31113
41	111111
42	112211
43	121121

[1,2,3,4,5,6,7,8,9,11,22,33,111,121,131,141,151, 161,171,191,212,222,313,1111,1221,1331,2112,3113, 11111,11211,11311,11411,11511,11711,12121,12221, 13131,21112,21212,31113,111111,112211,121121]