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A200266
as a simple table
n
a(n)
1
1
2
3
3
3
4
3
5
5
6
5
7
5
8
7
9
3
10
3
11
7
12
9
13
11
14
17
15
5
16
3
17
13
18
17
19
15
20
21
21
5
22
9
23
21
24
19
25
9
26
13
27
3
28
5
29
21
30
17
[1,3,3,3,5,5,5,7,3,3,7,9,11,17,5,3,13,17,15,21,5, 9,21,19,9,13,3,5,21,17]