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A137498 formatted as a simple table:

n a(n)
1 0
2 0
3 0
4 0
5 6
6 -60
7 120
8 300
9 -1800
10 1800
11 0
12 12600
13 -37800
14 25200
15 -11760
16 0
17 352800
18 -705600
19 352800
20 0
21 -846720
22 0
23 8467200
24 -12700800
25 5080320
26 1814400
27 0
28 -38102400
29 0
30 190512000
31 -228614400
32 76204800

[0,0,0,0,6,-60,120,300,-1800,1800,0,12600,-37800,
 25200,-11760,0,352800,-705600,352800,0,-846720,0,
 8467200,-12700800,5080320,1814400,0,-38102400,0,
 190512000,-228614400,76204800]

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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.


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