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A022212 formatted as a simple table:

n a(n)
0 1
1 3906
2 12714681
3 40053706056
4 125368356709806
5 391901483074853556
6 1224770494838892134806
7 3827456772141158994166056
8 11960833022875371081037525431 

[1,3906,12714681,40053706056,125368356709806,
 391901483074853556,1224770494838892134806,
 3827456772141158994166056,
 11960833022875371081037525431]

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Last modified December 7 08:40 EST 2009. Contains 170430 sequences.

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