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A199687 as a simple table

n a(n)
0 8
1 71
2 701
3 7001
4 70001
5 700001
6 7000001
7 70000001
8 700000001
9 7000000001
10 70000000001
11 700000000001
12 7000000000001
13 70000000000001
14 700000000000001
15 7000000000000001
16 70000000000000001
17 700000000000000001
18 7000000000000000001

[8,71,701,7001,70001,700001,7000001,70000001,
 700000001,7000000001,70000000001,700000000001,
 7000000000001,70000000000001,700000000000001,
 7000000000000001,70000000000000001,
 700000000000000001,7000000000000000001]

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Last modified October 26 17:04 EDT 2021. Contains 348268 sequences. (Running on oeis4.)