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A066972 as a simple table

n a(n)
1 3
2 12
3 42
4 144
5 728
6 2688
7 10080
8 39312
9 127008
10 423360
11 2419200
12 6773760
13 32140800 

[3,12,42,144,728,2688,10080,39312,127008,423360,
 2419200,6773760,32140800]

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Last modified April 25 06:42 EDT 2024. Contains 371964 sequences. (Running on oeis4.)