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A123544 formatted as a simple table:

n a(n)
0 0
1 0
2 1
3 6
4 87
5 1980
6 66270
7 3050460
8 184716630
9 14231775600
10 1359481407480
11 157694893448400
12 21835679256606600
13 3557942554594428000
14 673941365091485290800
15 146851484638349504613600

[0,0,1,6,87,1980,66270,3050460,184716630,
 14231775600,1359481407480,157694893448400,
 21835679256606600,3557942554594428000,
 673941365091485290800,146851484638349504613600]

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Last modified December 10 00:48 EST 2009. Contains 170565 sequences.


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