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A018780
as a simple table
n
a(n)
1
1
2
2
3
7
4
14
5
73
6
146
7
511
8
1022
[1,2,7,14,73,146,511,1022]
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Last modified April 23 09:22 EDT 2024. Contains 371905 sequences. (Running on oeis4.)