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A374013
as a simple table
n
a(n)
4
0
5
1
6
0
7
1
8
1
9
1
10
2
11
2
12
2
13
2
14
3
15
3
16
3
17
3
18
3
19
4
20
4
[0,1,0,1,1,1,2,2,2,2,3,3,3,3,3,4,4]
