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A028757 as a simple table

n a(n)
1 2
2 3
3 6
4 7
5 8
6 10
7 11
8 13
9 14
10 15
11 17
12 18
13 19
14 21
15 22
16 23
17 24
18 26
19 27
20 28
21 29
22 30
23 31
24 32
25 34
26 35
27 38
28 39
29 40
30 41
31 42
32 43

[2,3,6,7,8,10,11,13,14,15,17,18,19,21,22,23,24,26,
 27,28,29,30,31,32,34,35,38,39,40,41,42,43]

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Last modified April 18 12:42 EDT 2019. Contains 322209 sequences. (Running on oeis4.)