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A146193
as a simple table
n
a(n)
1
1
2
1
3
1
4
1
5
1
6
1
7
1
8
1
9
1
10
1
11
3
12
3
13
13
14
13
15
31
16
31
17
85
18
85
19
561
20
561
21
4911
22
4911
23
35269
24
35269
[1,1,1,1,1,1,1,1,1,1,3,3,13,13,31,31,85,85,561, 561,4911,4911,35269,35269]