A184337 - OEIS

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A184337 as a simple table

n	a(n)
0	0
1	81
2	8811
3	888111
4	88881111
5	8888811111
6	888888111111
7	88888881111111
8	8888888811111111
9	888888888111111111
10	88888888881111111111
11	8888888888811111111111
12	888888888888111111111111
13	88888888888881111111111111

[0,81,8811,888111,88881111,8888811111, 888888111111,88888881111111,8888888811111111, 888888888111111111,88888888881111111111, 8888888888811111111111,888888888888111111111111, 88888888888881111111111111]