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A242997 as a simple table

n a(n)
1 1
2 4
3 288
4 1105920
5 445906944000
6 30851909057249280000
7 540013176648715369394995200000
8 3299903381977999900396941913809223680000000
9 9276369213749813701818662527515163802639831924736000000000 

[1,4,288,1105920,445906944000,
 30851909057249280000,
 540013176648715369394995200000,
 3299903381977999900396941913809223680000000,
 92763692137498137018186625275151638026398319247360\
 00000000]

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Last modified April 24 17:51 EDT 2024. Contains 371962 sequences. (Running on oeis4.)