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A197788
as a simple table
n
a(n)
1
1
2
5
3
14
4
63
5
513
6
10097
7
259230
8
11938480
9
1034835441
10
141000000947
[1,5,14,63,513,10097,259230,11938480,1034835441, 141000000947]