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A147007
as a simple table
n
a(n)
1
1
2
1
3
1
4
1
5
1
6
1
7
1
8
1
9
2
10
3
11
6
12
9
13
14
14
23
15
57
16
131
17
385
18
909
19
2527
20
6618
21
23479
[1,1,1,1,1,1,1,1,2,3,6,9,14,23,57,131,385,909, 2527,6618,23479]