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A086628 formatted as a simple table:

n a(n)
0 1
1 2
2 3
3 8
4 23
5 70
6 230
7 782
8 2729
9 9740
10 35345
11 130018
12 483782
13 1817450
14 6884050
15 26261498
16 100808873
17 389101464
18 1509198827
19 5879305034
20 22993849657

[1,2,3,8,23,70,230,782,2729,9740,35345,130018,
 483782,1817450,6884050,26261498,100808873,
 389101464,1509198827,5879305034,22993849657]

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Last modified December 18 21:37 EST 2009. Contains 171024 sequences.


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