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A211302
as a simple table
n
a(n)
1
4
2
6
3
8
4
9
5
11
6
11
7
12
8
13
9
13
10
14
11
15
12
15
13
15
14
16
15
16
16
16
17
17
18
17
19
17
20
18
21
18
22
18
23
18
24
18
25
19
26
19
27
19
28
19
29
19
30
19
[4,6,8,9,11,11,12,13,13,14,15,15,15,16,16,16,17, 17,17,18,18,18,18,18,19,19,19,19,19,19]
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Last modified April 19 06:41 EDT 2024. Contains 371782 sequences. (Running on oeis4.)