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A046668 as a simple table

n a(n)
1 1
2 2
3 3
4 7
5 9
6 10
7 11
8 12
9 14
10 15
11 16
12 17
13 18
14 19
15 20
16 21
17 24
18 28
19 32
20 33
21 39

[1,2,3,7,9,10,11,12,14,15,16,17,18,19,20,21,24,28,
 32,33,39]

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Last modified March 28 18:04 EDT 2024. Contains 371254 sequences. (Running on oeis4.)