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A263542
as a simple table
n
a(n)
2
24
3
112
4
376
5
768
6
2160
7
20352
8
5376
9
5904
10
86208
11
51840
12
64512
13
56736
14
1628352
15
1342656
16
44084736
[24,112,376,768,2160,20352,5376,5904,86208,51840, 64512,56736,1628352,1342656,44084736]