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A227116
as a simple table
n
a(n)
1
0
2
1
3
2
4
4
5
7
6
9
7
14
8
18
9
23
10
29
11
36
12
44
13
52
14
61
15
71
[0,1,2,4,7,9,14,18,23,29,36,44,52,61,71]