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| n | a(n) |
|---|---|
| 1 | 19 |
| 2 | 31 |
| 3 | 37 |
| 4 | 43 |
| 5 | 79 |
| 6 | 199 |
| 7 | 211 |
| 8 | 223 |
| 9 | 229 |
| 10 | 277 |
| 11 | 283 |
| 12 | 367 |
| 13 | 439 |
| 14 | 463 |
| 15 | 499 |
| 16 | 523 |
| 17 | 547 |
| 18 | 619 |
| 19 | 643 |
| 20 | 692 |
| 21 | 829 |
| 22 | 859 |
| 23 | 877 |
| 24 | 907 |
| 25 | 967 |
| 26 | 997 |
[19,31,37,43,79,199,211,223,229,277,283,367,439, 463,499,523,547,619,643,692,829,859,877,907,967, 997] |