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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 16 |
| 3 | 22 |
| 4 | 176 |
| 5 | 222 |
| 6 | 1776 |
| 7 | 2222 |
| 8 | 17776 |
| 9 | 22222 |
| 10 | 177776 |
| 11 | 222222 |
| 12 | 1777776 |
| 13 | 2222222 |
| 14 | 17777776 |
| 15 | 22222222 |
| 16 | 177777776 |
| 17 | 222222222 |
| 18 | 1777777776 |
| 19 | 2222222222 |
| 20 | 17777777776 |
| 21 | 22222222222 |
| 22 | 177777777776 |
| 23 | 222222222222 |
| 24 | 1777777777776 |
| 25 | 2222222222222 |
| 26 | 17777777777776 |
[2,16,22,176,222,1776,2222,17776,22222,177776, 222222,1777776,2222222,17777776,22222222, 177777776,222222222,1777777776,2222222222, 17777777776,22222222222,177777777776,222222222222, 1777777777776,2222222222222,17777777777776] |