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A337019
as a simple table
n
a(n)
1
0
2
1
3
1
4
1
5
3
6
3
7
4
8
6
9
6
10
6
11
7
12
8
13
10
14
10
15
10
16
11
17
12
18
13
19
15
[0,1,1,1,3,3,4,6,6,6,7,8,10,10,10,11,12,13,15]