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A051766 formatted as a simple table:

n a(n)
1 0
2 0
3 0
4 0
5 0
6 0
7 0
8 0
9 2
10 27
11 187
12 1103
13 6919
14 37885
15 226580
16 1308449

[0,0,0,0,0,0,0,0,2,27,187,1103,6919,37885,226580,
 1308449]

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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