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A009668 as a simple table

n a(n)
0 1
1 4
2 32
3 432
4 10752
5 504832
6 35418112
7 3115462656
8 333569720320
9 44698511474688
10 7574890049699840
11 1575934549490139136
12 387157222106970718208
13 110017544405171642040320 

[1,4,32,432,10752,504832,35418112,3115462656,
 333569720320,44698511474688,7574890049699840,
 1575934549490139136,387157222106970718208,
 110017544405171642040320]

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Last modified May 1 23:54 EDT 2024. Contains 372178 sequences. (Running on oeis4.)