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A006425 formatted as a simple table:

n a(n)
1 4
2 79
3 900
4 7885
5 59080
6 398846
7 2499096
8 14805705
9 83969600
10 459868530

[4,79,900,7885,59080,398846,2499096,14805705,
 83969600,459868530]

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Last modified December 4 15:11 EST 2009. Contains 170347 sequences.


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