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A082491 as a simple table

n a(n)
0 1
1 0
2 2
3 12
4 216
5 5280
6 190800
7 9344160
8 598066560
9 48443028480
10 4844306476800
11 586161043776000
12 84407190782745600
13 14264815236056985600
14 2795903786354347468800
15 629078351928420506112000
16 161044058093696572354560000
17 46541732789077953723039744000 

[1,0,2,12,216,5280,190800,9344160,598066560,
 48443028480,4844306476800,586161043776000,
 84407190782745600,14264815236056985600,
 2795903786354347468800,629078351928420506112000,
 161044058093696572354560000,
 46541732789077953723039744000]

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Last modified May 19 14:45 EDT 2024. Contains 372698 sequences. (Running on oeis4.)