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A043554
as a simple table
n
a(n)
0
1
1
1
2
2
3
1
4
2
5
3
6
2
7
1
8
2
9
3
10
4
11
3
12
2
13
3
14
2
15
1
16
2
17
3
18
4
19
3
20
4
21
5
22
4
23
3
24
2
25
3
26
4
27
3
[1,1,2,1,2,3,2,1,2,3,4,3,2,3,2,1,2,3,4,3,4,5,4,3, 2,3,4,3]