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A247567
as a simple table
n
a(n)
2
3
3
4
4
9
5
5
6
7
7
14
8
23
9
16
10
11
11
110
12
19
13
156
14
29
15
16
16
55
17
272
18
25
19
171
20
27
[3,4,9,5,7,14,23,16,11,110,19,156,29,16,55,272,25, 171,27]