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A003058
as a simple table
n
a(n)
1
1
2
1
3
2
4
2
5
2
6
2
7
3
8
3
9
3
10
3
11
3
12
3
13
4
14
4
15
4
16
4
17
4
18
4
19
4
20
4
21
5
22
5
23
5
24
5
25
5
26
5
27
5
28
5
29
5
30
5
31
6
32
6
33
6
34
6
[1,1,2,2,2,2,3,3,3,3,3,3,4,4,4,4,4,4,4,4,5,5,5,5, 5,5,5,5,5,5,6,6,6,6]