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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 1 |
| 7 | 1 |
| 8 | 1 |
| 9 | 1 |
| 10 | 7777 |
| 11 | 77077 |
| 12 | 122221 |
| 13 | 707707 |
| 14 | 770077 |
| 15 | 7070707 |
| 16 | 7700077 |
| 17 | 4444444 |
| 18 | 88888888 |
| 19 | 70077007 |
| 20 | 70700707 |
| 21 | 77000077 |
| 22 | 88888888 |
| 23 | 88888888 |
| 24 | 888808888 |
| 25 | 488888884 |
| 26 | 700707007 |
| 27 | 707000707 |
| 28 | 404444404 |
| 29 | 770000077 |
| 30 | 440444044 |
| 31 | 444040444 |
| 32 | 848888848 |
| 33 | 884888488 |
[1,1,1,1,1,1,1,1,1,7777,77077,122221,707707, 770077,7070707,7700077,4444444,88888888,70077007, 70700707,77000077,88888888,88888888,888808888, 488888884,700707007,707000707,404444404,770000077, 440444044,444040444,848888848,884888488] |