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A005297
as a simple table
n
a(n)
1
2
2
1
3
5
4
7
5
17
6
25
7
52
8
77
9
143
10
218
11
371
12
564
13
920
14
1380
15
2168
[2,1,5,7,17,25,52,77,143,218,371,564,920,1380, 2168]