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A105387
as a simple table
n
a(n)
1
2
2
7
3
5
4
3
5
1
6
13
7
1
8
15
9
3
10
8
11
2
12
11
13
0
14
1
15
0
16
9
17
2
18
5
19
7
20
0
21
6
22
14
23
4
24
6
25
4
26
3
[2,7,5,3,1,13,1,15,3,8,2,11,0,1,0,9,2,5,7,0,6,14, 4,6,4,3]