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A005990 as a simple table

n a(n)
1 0
2 1
3 8
4 60
5 480
6 4200
7 40320
8 423360
9 4838400
10 59875200
11 798336000
12 11416204800
13 174356582400
14 2833294464000
15 48819843072000
16 889218570240000
17 17072996548608000
18 344661117825024000
19 7298706024529920000
20 161787983543746560000

[0,1,8,60,480,4200,40320,423360,4838400,59875200,
 798336000,11416204800,174356582400,2833294464000,
 48819843072000,889218570240000,17072996548608000,
 344661117825024000,7298706024529920000,
 161787983543746560000]

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Last modified March 19 01:22 EDT 2024. Contains 370952 sequences. (Running on oeis4.)