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A173771
as a simple table
n
a(n)
1
3
2
7
3
47
4
4447
5
4444444447
6
44444444444444444447
7
44444444444444444444444447
[3,7,47,4447,4444444447,44444444444444444447, 44444444444444444444444447]
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Last modified April 23 03:30 EDT 2024. Contains 371906 sequences. (Running on oeis4.)