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A006782 formatted as a simple table:

n a(n)
1 1
2 0
3 1
4 2
5 9
6 36
7 154
8 684
9 3128
10 14666
11 70258
12 342766

[1,0,1,2,9,36,154,684,3128,14666,70258,342766]

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Last modified December 2 11:54 EST 2009. Contains 167921 sequences.


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