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A099659 as a simple table

n a(n)
1 7
2 59
3 557
4 5557
5 55579
6 555557
7 5555567
8 55555559
9 555555587
10 5555555557
11 55555555619
12 555555555559
13 5555555555593
14 55555555555573
15 555555555555557
16 5555555555555573
17 55555555555555639
18 555555555555555559
19 5555555555555555621
20 55555555555555555567
21 555555555555555555619

[7,59,557,5557,55579,555557,5555567,55555559,
 555555587,5555555557,55555555619,555555555559,
 5555555555593,55555555555573,555555555555557,
 5555555555555573,55555555555555639,
 555555555555555559,5555555555555555621,
 55555555555555555567,555555555555555555619]

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Last modified April 25 06:14 EDT 2024. Contains 371964 sequences. (Running on oeis4.)