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A002533 formatted as a simple table:

n a(n)
0 1
1 1
2 7
3 19
4 73
5 241
6 847
7 2899
8 10033
9 34561
10 119287
11 411379
12 1419193
13 4895281
14 16886527
15 58249459
16 200931553
17 693110401
18 2390878567
19 8247309139
20 28449011113 

[1,1,7,19,73,241,847,2899,10033,34561,119287,
 411379,1419193,4895281,16886527,58249459,
 200931553,693110401,2390878567,8247309139,
 28449011113]

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.

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