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A098627 formatted as a simple table:

n a(n)
0 1
1 0
2 1
3 2
4 27
5 164
6 2335
7 25458
8 437241
9 6965112
10 145640817
11 3057675290
12 76814951587
13 2003471245164

[1,0,1,2,27,164,2335,25458,437241,6965112,
 145640817,3057675290,76814951587,2003471245164]

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Last modified December 10 12:37 EST 2009. Contains 170569 sequences.


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