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A064898 formatted as a simple table:

n a(n)
0 1
1 0
2 1
3 5
4 28
5 199
6 1721
7 17394
8 200803
9 2607301
10 37614922
11 596933193
12 10334308029
13 193820343248
14 3914731286181
15 84716451763961
16 1955520075368116
17 47960724925499219
18 1245468599978831333

[1,0,1,5,28,199,1721,17394,200803,2607301,
 37614922,596933193,10334308029,193820343248,
 3914731286181,84716451763961,1955520075368116,
 47960724925499219,1245468599978831333]

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Last modified December 3 22:15 EST 2009. Contains 170310 sequences.


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