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A059930
as a simple table
n
a(n)
1
2
2
3
3
4
4
7
5
8
6
9
7
17
8
18
9
24
10
29
11
53
12
54
13
57
14
59
15
72
16
79
17
84
18
209
19
259
20
567
21
807
22
854
[2,3,4,7,8,9,17,18,24,29,53,54,57,59,72,79,84,209, 259,567,807,854]