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A261578
as a simple table
n
a(n)
1
1
2
2
3
5
4
8
5
11
6
23
7
26
8
59
9
83
10
89
11
116
12
1103
13
1568
14
5768
15
13376
16
17810
17
18614
18
66209
19
167933
20
188318
[1,2,5,8,11,23,26,59,83,89,116,1103,1568,5768, 13376,17810,18614,66209,167933,188318]