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A081374 as a simple table

n a(n)
1 1
2 2
3 2
4 5
5 10
6 22
7 43
8 86
9 170
10 341
11 682
12 1366
13 2731
14 5462
15 10922
16 21845
17 43690
18 87382
19 174763
20 349526
21 699050
22 1398101
23 2796202
24 5592406
25 11184811
26 22369622
27 44739242
28 89478485
29 178956970
30 357913942
31 715827883

[1,2,2,5,10,22,43,86,170,341,682,1366,2731,5462,
 10922,21845,43690,87382,174763,349526,699050,
 1398101,2796202,5592406,11184811,22369622,
 44739242,89478485,178956970,357913942,715827883]

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Last modified June 18 17:33 EDT 2013. Contains 226355 sequences.