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A217378
as a simple table
n
a(n)
1
2
2
4
3
5
4
7
5
9
6
9
7
9
8
11
9
12
10
13
11
13
12
15
13
15
14
16
15
16
16
18
17
18
18
20
19
23
20
21
[2,4,5,7,9,9,9,11,12,13,13,15,15,16,16,18,18,20, 23,21]
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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)
