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A009424 formatted as a simple table:

n a(n)
0 0
1 1
2 -1
3 5
4 -24
5 154
6 -1170
7 10394
8 -105392
9 1201524
10 -15210180
11 211691380
12 -3212711040
13 52801793160
14 -934299180360
15 17708685967400
16 -357960437635200
17 7686847410694800
18 -174756587308650000
19 4193327411934706000

[0,1,-1,5,-24,154,-1170,10394,-105392,1201524,
 -15210180,211691380,-3212711040,52801793160,
 -934299180360,17708685967400,-357960437635200,
 7686847410694800,-174756587308650000,
 4193327411934706000]

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.


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