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| n | a(n) |
|---|---|
| 1 | 1711111117 |
| 2 | 1766666617 |
| 3 | 2388888823 |
| 4 | 2399999923 |
| 5 | 2911111129 |
| 6 | 2933333329 |
| 7 | 2955555529 |
| 8 | 2966666629 |
| 9 | 2999999929 |
| 10 | 3188888831 |
| 11 | 4111111141 |
| 12 | 4133333341 |
| 13 | 4144444441 |
| 14 | 4188888841 |
| 15 | 4322222243 |
| 16 | 4333333343 |
| 17 | 4377777743 |
| 18 | 4388888843 |
| 19 | 4399999943 |
| 20 | 4744444447 |
| 21 | 4766666647 |
[1711111117,1766666617,2388888823,2399999923, 2911111129,2933333329,2955555529,2966666629, 2999999929,3188888831,4111111141,4133333341, 4144444441,4188888841,4322222243,4333333343, 4377777743,4388888843,4399999943,4744444447, 4766666647] |