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A109892 as a simple table

n a(n)
1 2
2 6
3 84
4 20475
5 234531275
6 199200973555045
7 16481425431663122588749
8 173392935733620216899469862542865
9 300717095810709134168380432250652303057474577 

[2,6,84,20475,234531275,199200973555045,
 16481425431663122588749,
 173392935733620216899469862542865,
 300717095810709134168380432250652303057474577]

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Last modified March 8 00:38 EST 2021. Contains 341934 sequences. (Running on oeis4.)