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A141223 formatted as a simple table:

n a(n)
0 1
1 5
2 24
3 113
4 526
5 2430
6 11166
7 51105
8 233190
9 1061510
10 4822984
11 21879786
12 99135076
13 448707992
14 2029215114
15 9170247393
16 41416383366
17 186957126702
18 843575853984
19 3804927658878
20 17156636097156
21 77339426905812

[1,5,24,113,526,2430,11166,51105,233190,1061510,
 4822984,21879786,99135076,448707992,2029215114,
 9170247393,41416383366,186957126702,843575853984,
 3804927658878,17156636097156,77339426905812]

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Last modified December 19 21:04 EST 2009. Contains 171054 sequences.


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