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A141840 formatted as a simple table:

n a(n)
1 16
2 64
3 631
4 1561
5 4360
6 15466
7 63043
8 34406005
9 565306024

[16,64,631,1561,4360,15466,63043,34406005,
 565306024]

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Last modified November 30 13:13 EST 2009. Contains 167758 sequences.


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