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A001566 formatted as a simple table:

n a(n)
0 3
1 7
2 47
3 2207
4 4870847
5 23725150497407
6 562882766124611619513723647
7 316837008400094222150776738483768236006420971486980607 

[3,7,47,2207,4870847,23725150497407,
 562882766124611619513723647,
 316837008400094222150776738483768236006420971486980607]

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Last modified December 4 08:07 EST 2009. Contains 170310 sequences.

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