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A297472 as a simple table

n a(n)
1 1
2 1
3 5
4 30
5 1140
6 69136
7 33666336
8 27406992000
9 234805387040640
10 3472530332565934080
11 660908229459858361516032
12 217930756388573091682145009664 

[1,1,5,30,1140,69136,33666336,27406992000,
 234805387040640,3472530332565934080,
 660908229459858361516032,
 217930756388573091682145009664]

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Last modified August 28 01:15 EDT 2024. Contains 375477 sequences. (Running on oeis4.)