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A095998 as a simple table

n a(n)
1 0
2 1
3 5
4 2
5 34
6 324
7 2988
8 28944
9 300816
10 3371040
11 793440
12 49438080
13 1121696640
14 21930773760
15 416139897600
16 7965912729600
17 156343306291200
18 3169866941337600
19 66629845591142400
20 1454242012231680000

[0,1,5,2,34,324,2988,28944,300816,3371040,793440,
 49438080,1121696640,21930773760,416139897600,
 7965912729600,156343306291200,3169866941337600,
 66629845591142400,1454242012231680000]

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Last modified March 28 14:38 EDT 2024. Contains 371254 sequences. (Running on oeis4.)