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A070737
as a simple table
n
a(n)
1
3
2
4
3
6
4
6
5
1068630
6
6770610
7
2981997480
8
339126523890
9
120351747887280
10
13533264289711320
[3,4,6,6,1068630,6770610,2981997480,339126523890, 120351747887280,13533264289711320]