A164851 - OEIS

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A164851 as a simple table

n	a(n)
0	1
1	11
2	1
3	110
4	12
5	1
6	1100
7	122
8	13
9	1
10	11000
11	1222
12	135
13	14
14	1
15	110000
16	12222
17	1357
18	149
19	15
20	1
21	1100000
22	122222
23	13579
24	1506
25	164
26	16
27	1
28	11000000
29	1222222
30	135801
31	15085
32	1670
33	180
34	17
35	1

[1,11,1,110,12,1,1100,122,13,1,11000,1222,135,14, 1,110000,12222,1357,149,15,1,1100000,122222,13579, 1506,164,16,1,11000000,1222222,135801,15085,1670, 180,17,1]