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A117508 as a simple table

n a(n)
1 3
2 21
3 3003
4 969969
5 872002131
6 1537339756953
7 5532885785273847
8 28676947025074349001
9 298326279901848452657403
10 3479379402495258503343291189
11 66257821961717207679166294112127 

[3,21,3003,969969,872002131,1537339756953,
 5532885785273847,28676947025074349001,
 298326279901848452657403,
 3479379402495258503343291189,
 66257821961717207679166294112127]

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Last modified April 23 10:29 EDT 2024. Contains 371905 sequences. (Running on oeis4.)