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A086578 as a simple table

n a(n)
0 0
1 63
2 693
3 6993
4 69993
5 699993
6 6999993
7 69999993
8 699999993
9 6999999993
10 69999999993
11 699999999993
12 6999999999993
13 69999999999993
14 699999999999993
15 6999999999999993
16 69999999999999993
17 699999999999999993
18 6999999999999999993
19 69999999999999999993
20 699999999999999999993

[0,63,693,6993,69993,699993,6999993,69999993,
 699999993,6999999993,69999999993,699999999993,
 6999999999993,69999999999993,699999999999993,
 6999999999999993,69999999999999993,
 699999999999999993,6999999999999999993,
 69999999999999999993,699999999999999999993]

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Last modified May 21 19:35 EDT 2024. Contains 372738 sequences. (Running on oeis4.)