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A027894 as a simple table

n a(n)
1 1
2 3
3 9
4 11
5 33
6 99
7 101
8 303
9 909
10 1111
11 3333
12 9999 

[1,3,9,11,33,99,101,303,909,1111,3333,9999]

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Last modified April 23 16:40 EDT 2024. Contains 371916 sequences. (Running on oeis4.)