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A175925 as a simple table

n a(n)
0 1
1 6
2 30
3 168
4 1080
5 7920
6 65520
7 604800
8 6168960
9 68947200
10 838252800
11 11017036800
12 155675520000
13 2353813862400
14 37922556672000
15 648606486528000
16 11737685127168000
17 224083079700480000
18 4500868715126784000

[1,6,30,168,1080,7920,65520,604800,6168960,
 68947200,838252800,11017036800,155675520000,
 2353813862400,37922556672000,648606486528000,
 11737685127168000,224083079700480000,
 4500868715126784000]

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Last modified April 19 02:45 EDT 2024. Contains 371782 sequences. (Running on oeis4.)