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A028745
as a simple table
n
a(n)
1
2
2
3
3
5
4
6
5
7
6
8
7
10
8
11
9
12
10
13
11
14
12
15
13
18
14
19
15
20
16
21
17
22
18
23
19
24
20
26
21
27
22
28
23
29
24
30
25
31
[2,3,5,6,7,8,10,11,12,13,14,15,18,19,20,21,22,23, 24,26,27,28,29,30,31]
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Last modified April 23 07:42 EDT 2024. Contains 371905 sequences. (Running on oeis4.)