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A056605 formatted as a simple table:

n a(n)
1 0
2 0
3 0
4 2
5 1
6 5
7 4
8 9
9 10
10 25
11 46
12 121
13 240
14 619
15 1353
16 3286
17 7773
18 19046
19 45766

[0,0,0,2,1,5,4,9,10,25,46,121,240,619,1353,3286,
 7773,19046,45766]

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Last modified December 20 00:58 EST 2009. Contains 171054 sequences.


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