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A030706
as a simple table
n
a(n)
1
0
2
1
3
2
4
3
5
4
6
6
7
7
8
8
9
9
10
12
11
13
12
14
13
15
14
16
15
18
16
41
[0,1,2,3,4,6,7,8,9,12,13,14,15,16,18,41]
