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A056613 formatted as a simple table:

n a(n)
1 0
2 0
3 0
4 0
5 0
6 0
7 0
8 1
9 1
10 7
11 16
12 55
13 110
14 279
15 620
16 1645
17 4067
18 10843
19 27250
20 70637
21 179011
22 462086
23 1184882
24 3068984

[0,0,0,0,0,0,0,1,1,7,16,55,110,279,620,1645,4067,
 10843,27250,70637,179011,462086,1184882,3068984]

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


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