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A110354
as a simple table
n
a(n)
1
1
2
2
3
23
4
3
5
34
6
4
7
44
8
5
9
55
10
56
11
65
12
6
13
66
14
67
15
7
16
77
17
777
18
8
19
88
20
89
21
98
22
888
23
9
24
99
25
9999
26
13
[1,2,23,3,34,4,44,5,55,56,65,6,66,67,7,77,777,8, 88,89,98,888,9,99,9999,13]