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A046399 formatted as a simple table:

n a(n)
0 1
1 2
2 6
3 66
4 858
5 6006
6 222222
7 22444422
8 244868442
9 6434774346

[1,2,6,66,858,6006,222222,22444422,244868442,
 6434774346]

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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