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A284637 as a simple table

n a(n)
1 1
2 5
3 900
4 2592000
5 152587890625
6 88060251340800000
7 608462684559542896890625
8 39491298245528363382865920000000
9 24652445390187744298440793976121600000000
10 136940866302168849110603332519531250000000000000000 

[1,5,900,2592000,152587890625,88060251340800000,
 608462684559542896890625,
 39491298245528363382865920000000,
 24652445390187744298440793976121600000000,
 13694086630216884911060333251953125000000000000000\
 0]

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Last modified March 22 08:17 EDT 2023. Contains 361419 sequences. (Running on oeis4.)