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A108847 as a simple table

n a(n)
1 181
2 383
3 787
4 78887
5 9888889
6 188888881
7 3888888888883
8 188888888888881
9 3888888888888888888888888888883
10 18888888888888888888888888888888888888881 

[181,383,787,78887,9888889,188888881,
 3888888888883,188888888888881,
 3888888888888888888888888888883,
 18888888888888888888888888888888888888881]

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Last modified August 21 01:12 EDT 2024. Contains 375342 sequences. (Running on oeis4.)