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A084701
as a simple table
n
a(n)
1
2
2
2
3
4
4
6
5
120
6
120
7
120
8
21972720
9
827779590
10
2481129210
11
3894254360010
[2,2,4,6,120,120,120,21972720,827779590, 2481129210,3894254360010]