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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] |