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A287351
as a simple table
n
a(n)
1
1
2
3
3
9
4
15
5
27
6
37
7
165
8
207
9
897
10
5761
11
16753
12
17995
13
96567
[1,3,9,15,27,37,165,207,897,5761,16753,17995, 96567]
