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A007153 formatted as a simple table:

n a(n)
0 0
1 1
2 4
3 18
4 166
5 7579
6 7828352
7 2414682040996
8 56130437228687557907786

[0,1,4,18,166,7579,7828352,2414682040996,
 56130437228687557907786]

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Last modified December 19 12:50 EST 2009. Contains 171053 sequences.


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