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A289633 as a simple table

n a(n)
1 -1440
2 319680
3 -73733760
4 17014849920
5 -3926422987200
6 906079372542720
7 -209091033317387520
8 48250806224270918400
9 -11134577434408058898720
10 2569466177758810678838400
11 -592941804710481150566417280
12 136829971461225574971638023680 

[-1440,319680,-73733760,17014849920,
 -3926422987200,906079372542720,
 -209091033317387520,48250806224270918400,
 -11134577434408058898720,
 2569466177758810678838400,
 -592941804710481150566417280,
 136829971461225574971638023680]

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Last modified July 23 09:37 EDT 2024. Contains 374547 sequences. (Running on oeis4.)