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A102580 as a simple table

n a(n)
0 1
1 1
2 3
3 27
4 2025
5 566190
6 625831920
7 2774192113350
8 49208948146347570
9 3472093007861482740960
10 971461407155771477392032600
11 1076446082528185671934674675023160
12 4723701978908086606944984284949329285400
13 82155133922723780601138029235949809990647219040 

[1,1,3,27,2025,566190,625831920,2774192113350,
 49208948146347570,3472093007861482740960,
 971461407155771477392032600,
 1076446082528185671934674675023160,
 4723701978908086606944984284949329285400,
 82155133922723780601138029235949809990647219040]

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Last modified July 13 13:53 EDT 2024. Contains 374284 sequences. (Running on oeis4.)