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A131928 as a simple table

n a(n)
0 0
1 1
2 4
3 16
4 96
5 288
6 1440
7 5760
8 23040
9 92160
10 552960
11 1658880
12 7299072
13 36495360
14 109486080
15 510935040
16 2043740160
17 7664025600
18 28740096000
19 114960384000
20 459841536000
21 1839366144000
22 8583708672000
23 38626689024000

[0,1,4,16,96,288,1440,5760,23040,92160,552960,
 1658880,7299072,36495360,109486080,510935040,
 2043740160,7664025600,28740096000,114960384000,
 459841536000,1839366144000,8583708672000,
 38626689024000]

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Last modified August 20 06:44 EDT 2024. Contains 375311 sequences. (Running on oeis4.)