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A006348 formatted as a simple table:

n a(n)
1 0
2 1
3 4
4 25
5 174
6 1393
7 12536
8 125361
9 1378970
10 16547641
11 215119332
12 3011670649
13 45175059734
14 722800955745
15 12287616247664
16 221177092457953
17 4202364756701106

[0,1,4,25,174,1393,12536,125361,1378970,16547641,
 215119332,3011670649,45175059734,722800955745,
 12287616247664,221177092457953,4202364756701106]

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Last modified December 9 18:50 EST 2009. Contains 170568 sequences.


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