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A124250
as a simple table
n
a(n)
1
11
2
20
3
21
4
31
5
41
6
51
7
61
8
71
9
81
10
91
11
101
12
201
13
202
14
301
15
401
16
501
17
601
18
701
19
801
20
901
[11,20,21,31,41,51,61,71,81,91,101,201,202,301, 401,501,601,701,801,901]
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Last modified March 29 08:53 EDT 2024. Contains 371268 sequences. (Running on oeis4.)