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A060497 formatted as a simple table:

n a(n)
1 1
2 4
3 56
4 11440
5 129024480
6 13136858812224
7 614965786737727286400
8 23665616042362569982121184000
9 4818341997044953599090397918009939136000 

[1,4,56,11440,129024480,13136858812224,
 614965786737727286400,
 23665616042362569982121184000,
 4818341997044953599090397918009939136000]

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

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