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A108052
as a simple table
n
a(n)
1
1
2
3
3
5
4
7
5
10
6
11
7
17
8
59
9
81
10
108
11
574
12
629
13
1069
14
1759
15
2063
16
2682
17
9174
18
40929
19
42457
20
66033
[1,3,5,7,10,11,17,59,81,108,574,629,1069,1759, 2063,2682,9174,40929,42457,66033]