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A147343
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
1
12
1
13
1
14
1
15
3
16
3
17
9
18
9
19
19
20
19
21
39
22
39
23
125
24
125
25
481
26
481
[1,1,1,1,1,1,1,1,1,1,1,1,1,1,3,3,9,9,19,19,39,39, 125,125,481,481]