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A052171 formatted as a simple table:

n a(n)
0 1
1 2
2 11
3 52
4 296
5 1724
6 11060
7 74527
8 533046
9 3999187
10 31412182
11 257150093
12 2188063401
13 19299062896
14 176059781439
15 1657961491087 

[1,2,11,52,296,1724,11060,74527,533046,3999187,
 31412182,257150093,2188063401,19299062896,
 176059781439,1657961491087]

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Last modified November 24 23:16 EST 2009. Contains 167481 sequences.

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