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A156523 formatted as a simple table:

n a(n)
2 2
3 2
4 80
5 404
6 63392
7 1572582
8 1619260788
9 75946691122

[2,2,80,404,63392,1572582,1619260788,75946691122]

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


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