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A064031 as a simple table

n a(n)
1 1
2 1
3 1
4 576
5 207360000
6 26956124946896309452800000000000
7 2841003716170671644367609186370356458508919205193278721884160000000000000000000000 

[1,1,1,576,207360000,
 26956124946896309452800000000000,
 28410037161706716443676091863703564585089192051932\
 78721884160000000000000000000000]

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Last modified April 18 18:58 EDT 2024. Contains 371781 sequences. (Running on oeis4.)