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A052613 as a simple table

n a(n)
0 1
1 0
2 2
3 6
4 72
5 720
6 10080
7 156240
8 2822400
9 56972160
10 1280966400
11 31654022400
12 853580851200
13 24932991283200
14 784343085926400
15 26435945023488000
16 950417730662400000
17 36304660098330624000
18 1468365202287599616000

[1,0,2,6,72,720,10080,156240,2822400,56972160,
 1280966400,31654022400,853580851200,
 24932991283200,784343085926400,26435945023488000,
 950417730662400000,36304660098330624000,
 1468365202287599616000]

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Last modified April 24 11:47 EDT 2024. Contains 371936 sequences. (Running on oeis4.)