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A006606 formatted as a simple table:

n a(n)
1 1
2 2
3 3
4 6
5 10
6 20
7 36
8 72
9 135
10 272
11 528
12 1048
13 2080
14 4160
15 8242
16 16500
17 32895
18 65750
19 131328
20 262612
21 524733

[1,2,3,6,10,20,36,72,135,272,528,1048,2080,4160,
 8242,16500,32895,65750,131328,262612,524733]

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Last modified December 21 10:15 EST 2009. Contains 171081 sequences.


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