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A006957 formatted as a simple table:

n a(n)
0 1
1 2
2 7
3 32
4 185
5 1310
6 11067
7 109148
8 1234045
9 15752858
10 224169407
11 3518636504
12 60381131265
13 1124390692886
14 22577494959427
15 486212633129300
16 11177317486573445
17 273173247028616594
18 7072436847620016327

[1,2,7,32,185,1310,11067,109148,1234045,15752858,
 224169407,3518636504,60381131265,1124390692886,
 22577494959427,486212633129300,11177317486573445,
 273173247028616594,7072436847620016327]

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


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