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A027889 as a simple table

n a(n)
1 1
2 3
3 9
4 27
5 37
6 81
7 111
8 333
9 999
10 2997
11 333667
12 1001001
13 3003003
14 9009009
15 12345679
16 27027027
17 37037037
18 111111111
19 333333333
20 999999999 

[1,3,9,27,37,81,111,333,999,2997,333667,1001001,
 3003003,9009009,12345679,27027027,37037037,
 111111111,333333333,999999999]

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Last modified April 26 07:58 EDT 2024. Contains 371991 sequences. (Running on oeis4.)