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A147325
as a simple table
n
a(n)
1
1
2
1
3
1
4
1
5
9
6
25
7
57
8
349
9
3222
10
35623
11
520596
12
9629183
13
240941564
14
8486368727
15
407009202584
[1,1,1,1,9,25,57,349,3222,35623,520596,9629183, 240941564,8486368727,407009202584]