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A275882
as a simple table
n
a(n)
1
1
2
1
3
1
4
1
5
1
6
1
7
1
8
2
9
2
10
2
11
2
12
3
13
3
14
4
15
5
16
7
17
7
18
11
19
9
20
12
21
14
22
19
[1,1,1,1,1,1,1,2,2,2,2,3,3,4,5,7,7,11,9,12,14,19]