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A260231 as a simple table

n a(n)
1 2
2 10
3 280
4 71960
5 224946960
6 10495350312720
7 8643382777938679680
8 145011908479540041684850560
9 56180584638978557924165229531974400
10 561805846445966163880630853243909229531974400
11 160289764609087349005207761687490741791453382934816332800 

[2,10,280,71960,224946960,10495350312720,
 8643382777938679680,145011908479540041684850560,
 56180584638978557924165229531974400,
 561805846445966163880630853243909229531974400,
 16028976460908734900520776168749074179145338293481\
 6332800]

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Last modified April 25 10:47 EDT 2024. Contains 371967 sequences. (Running on oeis4.)