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A125031 formatted as a simple table:

n a(n)
1 1
2 2
3 12
4 104
5 1560
6 53184
7 3422384
8 430790144
9 111823251840
10 56741417927680
11 57729973360342272

[1,2,12,104,1560,53184,3422384,430790144,
 111823251840,56741417927680,57729973360342272]

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Last modified December 10 12:09 EST 2009. Contains 170569 sequences.


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