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A146539
as a simple table
n
a(n)
0
0
1
4
2
7
3
5
4
4
5
4
6
1
7
7
8
1
9
7
10
1
11
1
12
2
13
1
14
1
15
5
16
1
17
7
18
5
19
4
20
4
21
5
22
7
23
4
24
2
25
7
26
4
27
4
28
7
29
1
30
8
[0,4,7,5,4,4,1,7,1,7,1,1,2,1,1,5,1,7,5,4,4,5,7,4, 2,7,4,4,7,1,8]