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A123820
as a simple table
n
a(n)
1
1
2
1
3
1
4
1
5
3
6
4
7
5
8
10
9
26
10
38
11
51
12
121
13
324
14
488
15
673
16
1808
[1,1,1,1,3,4,5,10,26,38,51,121,324,488,673,1808]