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A003216 formatted as a simple table:

n a(n)
1 1
2 0
3 1
4 3
5 8
6 48
7 383
8 6196
9 177083
10 9305118
11 883156024

[1,0,1,3,8,48,383,6196,177083,9305118,883156024]

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Last modified December 17 19:39 EST 2009. Contains 170821 sequences.


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