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A091776 formatted as a simple table:

n a(n)
1 1
2 1
3 1
4 2
5 30
6 6678144
7 14783742920460482277828601638764478251520

[1,1,1,2,30,6678144,
 14783742920460482277828601638764478251520]

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


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