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A152661 as a simple table

n a(n)
2 0
3 2
4 8
5 48
6 288
7 2160
8 17280
9 161280
10 1612800
11 18144000
12 217728000
13 2874009600
14 40236134400
15 610248038400
16 9763968614400
17 167382319104000
18 3012881743872000
19 57621363351552000
20 1152427267031040000
21 24329020081766400000
22 535238441798860800000

[0,2,8,48,288,2160,17280,161280,1612800,18144000,
 217728000,2874009600,40236134400,610248038400,
 9763968614400,167382319104000,3012881743872000,
 57621363351552000,1152427267031040000,
 24329020081766400000,535238441798860800000]

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Last modified March 29 07:27 EDT 2024. Contains 371265 sequences. (Running on oeis4.)