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A203474 as a simple table

n a(n)
1 1
2 7
3 252
4 41580
5 29729700
6 89278289100
7 1104908105901600
8 55674109640169820800
9 11329124570678156834592000
10 9258047307912482983660236480000
11 30262334718212007877669234596364800000 

[1,7,252,41580,29729700,89278289100,
 1104908105901600,55674109640169820800,
 11329124570678156834592000,
 9258047307912482983660236480000,
 30262334718212007877669234596364800000]

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Last modified August 17 01:38 EDT 2024. Contains 375198 sequences. (Running on oeis4.)