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A001128 formatted as a simple table:

n a(n)
1 2
2 4
3 16
4 976
5 662704
6 269896807264
7 124883600543123110859968
8 108643488775144622666209173128243503963147630528 

[2,4,16,976,662704,269896807264,
 124883600543123110859968,
 108643488775144622666209173128243503963147630528]

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.

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