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A057784 formatted as a simple table:

n a(n)
1 1
2 2
3 2
4 4
5 4
6 10
7 13
8 29
9 47
10 100
11 181
12 383
13 738
14 1539
15 3087
16 6419
17 13135
18 27402
19 56779
20 118876

[1,2,2,4,4,10,13,29,47,100,181,383,738,1539,3087,
 6419,13135,27402,56779,118876]

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Last modified December 2 11:54 EST 2009. Contains 167921 sequences.


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