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A007852 formatted as a simple table:

n a(n)
1 1
2 2
3 7
4 29
5 131
6 625
7 3099
8 15818
9 82595
10 439259
11 2371632
12 12967707
13 71669167
14 399751019
15 2247488837
16 12723799989
17 72474333715
18 415046380767
19 2388355096446
20 13803034008095

[1,2,7,29,131,625,3099,15818,82595,439259,2371632,
 12967707,71669167,399751019,2247488837,
 12723799989,72474333715,415046380767,
 2388355096446,13803034008095]

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Last modified December 2 11:54 EST 2009. Contains 167921 sequences.


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