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A002883 formatted as a simple table:

n a(n)
4 1
5 2
6 5
7 9
8 18
9 31
10 57
11 92
12 159

[1,2,5,9,18,31,57,92,159]

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Last modified December 20 16:54 EST 2009. Contains 171081 sequences.


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