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A254406 as a simple table

n a(n)
1 2
2 5
3 55
4 22434
5 75381849525
6 1560152215306022835807766096
7 96142947030750035305397690793504947854390697291777107758182668001398 

[2,5,55,22434,75381849525,
 1560152215306022835807766096,
 96142947030750035305397690793504947854390697291777\
 107758182668001398]

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Last modified March 23 17:34 EDT 2023. Contains 361449 sequences. (Running on oeis4.)