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A253107 as a simple table

n a(n)
1 1
2 40
3 132160
4 33565612800
5 641149227424067584
6 911979417737022109612195840
7 96089134887576552087085389330051891200
8 747578503218020593242369202628724536730457230016512 

[1,40,132160,33565612800,641149227424067584,
 911979417737022109612195840,
 96089134887576552087085389330051891200,
 74757850321802059324236920262872453673045723001651\
 2]

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Last modified April 26 10:59 EDT 2024. Contains 371997 sequences. (Running on oeis4.)