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A289283
as a simple table
n
a(n)
1
1
2
4
3
11
4
41
5
42
6
3
7
2
8
31
9
43
10
21
11
44
12
12
13
32
14
33
15
22
16
34
17
13
18
23
19
24
20
14
21
15
[1,4,11,41,42,3,2,31,43,21,44,12,32,33,22,34,13, 23,24,14,15]