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A145846 formatted as a simple table:

n a(n)
0 1
1 2
2 8
3 47
4 357
5 3270
6 34515
7 406460
8 5215829
9 71677058
10 1041363040
11 15841778155
12 250494079945
13 4093630537014 

[1,2,8,47,357,3270,34515,406460,5215829,71677058,
 1041363040,15841778155,250494079945,
 4093630537014]

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

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