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A005592 formatted as a simple table:

n a(n)
1 2
2 6
3 17
4 46
5 122
6 321
7 842
8 2206
9 5777
10 15126
11 39602
12 103681
13 271442
14 710646
15 1860497
16 4870846
17 12752042
18 33385281
19 87403802
20 228826126
21 599074577
22 1568397606
23 4106118242
24 10749957121
25 28143753122
26 73681302246
27 192900153617

[2,6,17,46,122,321,842,2206,5777,15126,39602,
 103681,271442,710646,1860497,4870846,12752042,
 33385281,87403802,228826126,599074577,1568397606,
 4106118242,10749957121,28143753122,73681302246,
 192900153617]

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Last modified December 4 15:11 EST 2009. Contains 170347 sequences.


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