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A056637 formatted as a simple table:

n a(n)
1 2
2 11
3 23
4 47
5 283
6 719
7 1439
8 2879
9 34549
10 138197
11 1266767
12 14920303
13 36449279
14 377982107
15 1432349099
16 22111003847
17 110874748763

[2,11,23,47,283,719,1439,2879,34549,138197,
 1266767,14920303,36449279,377982107,1432349099,
 22111003847,110874748763]

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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.


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