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A131980 formatted as a simple table:

n a(n)
0 1
1 2
2 6
3 2
4 24
5 24
6 120
7 240
8 24
9 720
10 2400
11 720
12 5040
13 25200
14 15120
15 720

[1,2,6,2,24,24,120,240,24,720,2400,720,5040,25200,
 15120,720]

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


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