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A028409
as a simple table
n
a(n)
0
1
1
2
2
2
3
3
4
5
5
8
6
15
7
30
8
62
9
144
10
378
11
1133
[1,2,2,3,5,8,15,30,62,144,378,1133]
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Last modified August 5 19:08 EDT 2024. Contains 374954 sequences. (Running on oeis4.)