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A104191 as a simple table

n a(n)
0 1
1 3
2 14
3 54
4 236
5 920
6 3730
7 14862
8 59776
9 238856
10 956110
11 3823410
12 15299542
13 61193632
14 244779854
15 979111158
16 3916558030
17 15666093384
18 62664665094
19 250658276292

[1,3,14,54,236,920,3730,14862,59776,238856,956110,
 3823410,15299542,61193632,244779854,979111158,
 3916558030,15666093384,62664665094,250658276292]

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Last modified May 20 01:12 EDT 2013. Contains 225445 sequences.