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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 6 |
| 3 | 7 |
| 4 | 63 |
| 5 | 9694 |
| 6 | 797963 |
| 7 | 967974 |
| 8 | 973364 |
| 9 | 9736363 |
| 10 | 99967343 |
| 11 | 796479376 |
| 12 | 973639376 |
| 13 | 7977339643 |
| 14 | 9667799474 |
| 15 | 9676449736 |
| 16 | 9676773736 |
| 17 | 9997339643 |
| 18 | 9997396643 |
| 19 | 79774334643 |
| 20 | 79979334643 |
| 21 | 96676443736 |
| 22 | 96676763736 |
| 23 | 97333344474 |
| 24 | 97464694364 |
| 25 | 797796639376 |
| 26 | 966433977764 |
| 27 | 966667677974 |
| 28 | 966676674694 |
| 29 | 967649977764 |
[3,6,7,63,9694,797963,967974,973364,9736363, 99967343,796479376,973639376,7977339643, 9667799474,9676449736,9676773736,9997339643, 9997396643,79774334643,79979334643,96676443736, 96676763736,97333344474,97464694364,797796639376, 966433977764,966667677974,966676674694, 967649977764] |