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A081366
as a simple table
n
a(n)
4
1
5
2
6
1
7
2
8
3
9
3
10
3
11
8
12
1
13
11
14
3
15
5
16
3
17
14
18
8
19
25
20
9
21
29
22
16
23
11
24
18
25
34
26
37
27
6
[1,2,1,2,3,3,3,8,1,11,3,5,3,14,8,25,9,29,16,11,18, 34,37,6]