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A008777
as a simple table
n
a(n)
1
2
2
4
3
4
4
3
5
1
6
4
7
3
8
4
9
2
10
4
11
3
12
4
13
2
14
2
15
3
16
4
17
4
18
3
19
3
20
1
21
3
22
4
23
3
24
4
25
4
26
4
[2,4,4,3,1,4,3,4,2,4,3,4,2,2,3,4,4,3,3,1,3,4,3,4, 4,4]