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A030701
as a simple table
n
a(n)
1
0
2
1
3
2
4
3
5
4
6
7
7
8
8
9
9
12
10
14
11
16
12
17
13
18
14
36
15
38
16
43
[0,1,2,3,4,7,8,9,12,14,16,17,18,36,38,43]