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A112389
as a simple table
n
a(n)
1
1
2
24
3
1560
4
119580
5
10166403
6
915103765
7
85747377755
8
8274075616387
9
816630819554486
10
82052796578652749
[1,24,1560,119580,10166403,915103765,85747377755, 8274075616387,816630819554486,82052796578652749]