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A005248 formatted as a simple table:

n a(n)
0 2
1 3
2 7
3 18
4 47
5 123
6 322
7 843
8 2207
9 5778
10 15127
11 39603
12 103682
13 271443
14 710647
15 1860498
16 4870847
17 12752043
18 33385282
19 87403803
20 228826127
21 599074578
22 1568397607
23 4106118243
24 10749957122
25 28143753123
26 73681302247

[2,3,7,18,47,123,322,843,2207,5778,15127,39603,
 103682,271443,710647,1860498,4870847,12752043,
 33385282,87403803,228826127,599074578,1568397607,
 4106118243,10749957122,28143753123,73681302247]

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


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