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A375831 as a simple table

n a(n)
0 1
1 0
2 0
3 6
4 0
5 60
6 1080
7 840
8 80640
9 982800
10 5292000
11 249812640
12 2854051200
13 46711304640
14 1595483809920
15 22132648137600
16 649972279756800
17 19151306772998400
18 377272414943424000
19 14076577060273728000
20 407012458114918656000
21 11429334092933569612800

[1,0,0,6,0,60,1080,840,80640,982800,5292000,
 249812640,2854051200,46711304640,1595483809920,
 22132648137600,649972279756800,19151306772998400,
 377272414943424000,14076577060273728000,
 407012458114918656000,11429334092933569612800]

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Last modified September 8 02:36 EDT 2024. Contains 375749 sequences. (Running on oeis4.)