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A287059
as a simple table
n
a(n)
0
2
1
4
2
12
3
160
4
1255
5
256
6
12279
7
3072
8
1113823
9
119120
10
2191040
11
4640768
12
1835008
13
12805120
14
134217728
[2,4,12,160,1255,256,12279,3072,1113823,119120, 2191040,4640768,1835008,12805120,134217728]