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A037300
as a simple table
n
a(n)
0
2
1
2
2
8
3
2
4
2
5
3
6
2
7
2
8
3
9
3
10
3
11
2
12
2
13
4
14
2
15
2
16
2
17
3
18
2
19
3
20
2
21
3
22
2
23
3
24
2
25
2
26
4
27
2
28
2
29
3
30
2
31
4
[2,2,8,2,2,3,2,2,3,3,3,2,2,4,2,2,2,3,2,3,2,3,2,3, 2,2,4,2,2,3,2,4]