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A010559
as a simple table
n
a(n)
1
16
2
240
3
3600
4
53200
5
786000
6
11543952
7
169538256
8
2482215952
9
36341716432
10
531081176880
11
7760918381072
[16,240,3600,53200,786000,11543952,169538256, 2482215952,36341716432,531081176880,7760918381072]