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A052621 formatted as a simple table:

n a(n)
0 2
1 1
2 2
3 6
4 48
5 120
6 720
7 5040
8 80640
9 362880
10 3628800
11 39916800
12 958003200
13 6227020800
14 87178291200
15 1307674368000
16 41845579776000
17 355687428096000
18 6402373705728000
19 121645100408832000
20 4865804016353280000

[2,1,2,6,48,120,720,5040,80640,362880,3628800,
 39916800,958003200,6227020800,87178291200,
 1307674368000,41845579776000,355687428096000,
 6402373705728000,121645100408832000,
 4865804016353280000]

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Last modified November 27 14:50 EST 2009. Contains 167570 sequences.


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