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A007861 formatted as a simple table:

n a(n)
1 1
2 2
3 48
4 127401984
5 4027747178726102955105561756869669557370880

[1,2,48,127401984,
 4027747178726102955105561756869669557370880]

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Last modified December 20 00:58 EST 2009. Contains 171054 sequences.


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