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A018347
as a simple table
n
a(n)
1
1
2
2
3
3
4
6
5
9
6
13
7
18
8
26
9
39
10
78
11
117
12
234
[1,2,3,6,9,13,18,26,39,78,117,234]
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Last modified April 17 22:23 EDT 2024. Contains 371767 sequences. (Running on oeis4.)