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A290150
as a simple table
n
a(n)
1
2
2
3
3
8
4
9
5
11
6
14
7
17
8
23
9
29
10
38
11
50
12
129
13
164
14
578
15
1592
16
2951
17
4505
18
16826
19
17438
20
22748
[2,3,8,9,11,14,17,23,29,38,50,129,164,578,1592, 2951,4505,16826,17438,22748]