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A139238 formatted as a simple table:

n a(n)
1 4
2 24
3 96
4 1920
5 6144
6 122880
7 393216
8 7864320
9 528482304

[4,24,96,1920,6144,122880,393216,7864320,
 528482304]

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Last modified December 2 11:54 EST 2009. Contains 167921 sequences.


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