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A086972 formatted as a simple table:

n a(n)
0 1
1 3
2 11
3 41
4 149
5 527
6 1823
7 6197
8 20777
9 68891
10 226355
11 738113
12 2391485
13 7705895
14 24712007
15 78918989
16 251105873
17 796364339
18 2518233179
19 7942120025
20 24988621541
21 78452649023
22 245818300271
23 768835960421
24 2400651060089

[1,3,11,41,149,527,1823,6197,20777,68891,226355,
 738113,2391485,7705895,24712007,78918989,
 251105873,796364339,2518233179,7942120025,
 24988621541,78452649023,245818300271,768835960421,
 2400651060089]

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Last modified December 3 22:15 EST 2009. Contains 170310 sequences.


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