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A067685
as a simple table
n
a(n)
1
1
2
8
3
65
4
96
5
224
6
560
7
6734
8
11648
9
3588320
10
67969536
11
290575208
12
1629860960
13
4758938912
14
10769110400
[1,8,65,96,224,560,6734,11648,3588320,67969536, 290575208,1629860960,4758938912,10769110400]