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A005530 formatted as a simple table:

n a(n)
1 2
2 6
3 38
4 942
5 325262
6 25768825638
7 129127208425774833206
8 2722258935367507707190488025630791841374

[2,6,38,942,325262,25768825638,
 129127208425774833206,
 2722258935367507707190488025630791841374]

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


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