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A137886 formatted as a simple table:

n a(n)
3 12
4 144
5 3840
6 138240
7 6804000
8 436504320
9 35417088000
10 3546005299200
11 429451518988800
12 61883150757120000
13 10463789706751180800 

[12,144,3840,138240,6804000,436504320,35417088000,
 3546005299200,429451518988800,61883150757120000,
 10463789706751180800]

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Last modified December 4 12:48 EST 2009. Contains 170310 sequences.

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