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A089121
as a simple table
n
a(n)
1
2
2
5
3
5
4
17
5
13
6
37
7
5
8
13
9
41
10
101
11
61
12
29
13
17
14
197
15
113
16
257
17
29
18
13
19
181
20
401
21
17
22
97
[2,5,5,17,13,37,5,13,41,101,61,29,17,197,113,257, 29,13,181,401,17,97]