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A020096 formatted as a simple table:

n a(n)
0 1
1 1
2 2
3 5
4 17
5 78
6 449
7 3060
8 23920
9 210930
10 2070941
11 22403815
12 264772350
13 3393900116
14 46897528867
15 694936109572
16 10992625733215
17 184875978240421
18 3294153794102035
19 61989985034465560
20 1228528794319408361

[1,1,2,5,17,78,449,3060,23920,210930,2070941,
 22403815,264772350,3393900116,46897528867,
 694936109572,10992625733215,184875978240421,
 3294153794102035,61989985034465560,
 1228528794319408361]

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Last modified December 4 12:48 EST 2009. Contains 170310 sequences.


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