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A145502 formatted as a simple table:

n a(n)
1 2
2 6
3 46
4 2206
5 4870846
6 23725150497406
7 562882766124611619513723646
8 316837008400094222150776738483768236006420971486980606 

[2,6,46,2206,4870846,23725150497406,
 562882766124611619513723646,
 316837008400094222150776738483768236006420971486980606]

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

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