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A153824 formatted as a simple table:

n a(n)
0 0
1 0
2 1
3 6
4 36
5 240
6 1698
7 14304
8 118800
9 1118160
10 11705288
11 144092256
12 1738439808
13 24817158912
14 355309325280
15 5378578601760
16 86081749397280
17 1570394279039040
18 28281459220193088
19 572031558109589760
20 11458497230555094720

[0,0,1,6,36,240,1698,14304,118800,1118160,
 11705288,144092256,1738439808,24817158912,
 355309325280,5378578601760,86081749397280,
 1570394279039040,28281459220193088,
 572031558109589760,11458497230555094720]

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Last modified December 17 23:40 EST 2009. Contains 171025 sequences.


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