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A147157
as a simple table
n
a(n)
1
1
2
1
3
1
4
1
5
1
6
3
7
11
8
27
9
63
10
325
11
2169
12
14949
13
107269
[1,1,1,1,1,3,11,27,63,325,2169,14949,107269]