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A288250
as a simple table
n
a(n)
3
1
4
1
5
1
6
2
7
1
8
1
9
2
10
3
11
5
12
1
13
15
14
5
15
8
16
2
17
1
18
8
19
2
20
7
21
1
[1,1,1,2,1,1,2,3,5,1,15,5,8,2,1,8,2,7,1]