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A005212 formatted as a simple table:

n a(n)
0 0
1 1
2 0
3 6
4 0
5 120
6 0
7 5040
8 0
9 362880
10 0
11 39916800
12 0
13 6227020800
14 0
15 1307674368000
16 0
17 355687428096000
18 0
19 121645100408832000
20 0
21 51090942171709440000
22 0
23 25852016738884976640000
24 0

[0,1,0,6,0,120,0,5040,0,362880,0,39916800,0,
 6227020800,0,1307674368000,0,355687428096000,0,
 121645100408832000,0,51090942171709440000,0,
 25852016738884976640000,0]

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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.


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