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| n | a(n) |
|---|---|
| 1 | 3999 |
| 2 | 4299 |
| 3 | 4359 |
| 4 | 4371 |
| 5 | 5799 |
| 6 | 5859 |
| 7 | 5871 |
| 8 | 6159 |
| 9 | 6171 |
| 10 | 6231 |
| 11 | 13299 |
| 12 | 13359 |
| 13 | 13371 |
| 14 | 13659 |
| 15 | 13671 |
| 16 | 13731 |
| 17 | 15159 |
| 18 | 15171 |
| 19 | 15231 |
| 20 | 15531 |
| 21 | 16499 |
| 22 | 16799 |
| 23 | 16859 |
| 24 | 16871 |
| 25 | 18299 |
| 26 | 18359 |
| 27 | 18371 |
| 28 | 18659 |
| 29 | 18671 |
| 30 | 18731 |
| 31 | 18999 |
| 32 | 19299 |
[3999,4299,4359,4371,5799,5859,5871,6159,6171, 6231,13299,13359,13371,13659,13671,13731,15159, 15171,15231,15531,16499,16799,16859,16871,18299, 18359,18371,18659,18671,18731,18999,19299] |