A117508 - OEIS

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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]