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A011961
as a simple table
n
a(n)
1
0
2
1
3
2
4
2
5
3
6
6
7
6
8
9
9
13
10
15
11
18
12
25
13
27
14
34
15
42
16
47
17
54
18
67
19
72
20
84
[0,1,2,2,3,6,6,9,13,15,18,25,27,34,42,47,54,67,72, 84]
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Last modified March 29 02:23 EDT 2024. Contains 371264 sequences. (Running on oeis4.)