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A077540 as a simple table

n a(n)
1 2
2 120
3 5040
4 5765760
5 39070080
6 5967561600
7 66902793897139200
8 14792260407724800
9 106137499051584000
10 195333707771834926694400
11 131478134374795266938880000
12 912197279957973412118937661440000

[2,120,5040,5765760,39070080,5967561600,
 66902793897139200,14792260407724800,
 106137499051584000,195333707771834926694400,
 131478134374795266938880000,
 912197279957973412118937661440000]

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Last modified March 28 16:58 EDT 2024. Contains 371254 sequences. (Running on oeis4.)