A113585 - OEIS

A113585 as a simple table

n	a(n)
1	11
2	22
3	33
4	44
5	55
6	66
7	77
8	88
9	99
10	110
11	1111
12	1221
13	1331
14	1441
15	1551
16	1661
17	1771
18	1881
19	1991
20	220
21	1221
22	2222
23	2332
24	2442
25	2552
26	2662
27	2772
28	2882
29	2992
30	330
31	1331
32	2332
33	3333
34	3443
35	3553
36	3663
37	3773
38	3883
39	3993
40	440
41	1441
42	2442
43	3443
44	4444
45	4554
46	4664
47	4774
48	4884
49	4994
50	550
51	1551

[11,22,33,44,55,66,77,88,99,110,1111,1221,1331, 1441,1551,1661,1771,1881,1991,220,1221,2222,2332, 2442,2552,2662,2772,2882,2992,330,1331,2332,3333, 3443,3553,3663,3773,3883,3993,440,1441,2442,3443, 4444,4554,4664,4774,4884,4994,550,1551]