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A374387 as a simple table

n a(n)
0 1
1 0
2 -4
3 36
4 129
5 3340
6 2287607
7 162104000
8 16943055268
9 4059346088384
10 474967482901952
11 221630954408019520

[1,0,-4,36,129,3340,2287607,162104000,16943055268,
 4059346088384,474967482901952,221630954408019520]

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Last modified August 13 20:02 EDT 2024. Contains 375144 sequences. (Running on oeis4.)