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A002207 as a simple table

n a(n)
-1 1
0 2
1 12
2 24
3 720
4 160
5 60480
6 24192
7 3628800
8 1036800
9 479001600
10 788480
11 2615348736000
12 475517952000
13 31384184832000
14 689762304000
15 32011868528640000
16 15613165568
17 786014494949376000
18 109285437800448000

[1,2,12,24,720,160,60480,24192,3628800,1036800,
 479001600,788480,2615348736000,475517952000,
 31384184832000,689762304000,32011868528640000,
 15613165568,786014494949376000,109285437800448000]

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Last modified May 21 05:14 EDT 2013. Contains 225474 sequences.