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A172652 as a simple table

n a(n)
1 0
2 0
3 0
4 2520
5 755265546000
6 1563133410663239958840
7 17949532724881770551236183389177
8 1021718304724615708073668620385984867252800

[0,0,0,2520,755265546000,1563133410663239958840,
 17949532724881770551236183389177,
 1021718304724615708073668620385984867252800]

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Last modified July 19 10:10 EDT 2024. Contains 374392 sequences. (Running on oeis4.)