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A089388 as a simple table

n a(n)
1 2
2 3
3 4
4 6
5 7
6 9
7 13
8 15
9 16
10 18
11 21
12 22
13 25
14 28
15 34
16 39
17 42
18 51
19 55
20 58
21 60
22 63
23 67
24 70
25 72

[2,3,4,6,7,9,13,15,16,18,21,22,25,28,34,39,42,51,
 55,58,60,63,67,70,72]

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Last modified April 16 12:52 EDT 2024. Contains 371711 sequences. (Running on oeis4.)