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A282701
as a simple table
n
a(n)
0
0
1
1
2
2
3
3
4
2
5
3
6
4
7
5
8
4
9
5
10
4
11
5
12
6
13
7
14
6
15
7
16
6
17
7
18
8
19
7
20
8
21
7
[0,1,2,3,2,3,4,5,4,5,4,5,6,7,6,7,6,7,8,7,8,7]