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A074935
as a simple table
n
a(n)
1
1
2
1
3
2
4
2
5
3
6
24
7
200
8
6675
9
3045936
10
46360115600
11
251445391554623475
12
23318100352452485482468409184
[1,1,2,2,3,24,200,6675,3045936,46360115600, 251445391554623475,23318100352452485482468409184]