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A138462 formatted as a simple table:

n a(n)
0 1
1 6
2 90
3 1806
4 41586
5 1037718
6 27297738
7 745387038
8 20927156706
9 600318853926
10 17518619320890
11 518431875418926 

[1,6,90,1806,41586,1037718,27297738,745387038,
 20927156706,600318853926,17518619320890,
 518431875418926]

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

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