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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 13 |
| 3 | 31 |
| 4 | 57 |
| 5 | 121 |
| 6 | 133 |
| 7 | 183 |
| 8 | 307 |
| 9 | 381 |
| 10 | 403 |
| 11 | 553 |
| 12 | 741 |
| 13 | 781 |
| 14 | 871 |
| 15 | 993 |
| 16 | 1093 |
| 17 | 1407 |
| 18 | 1723 |
| 19 | 1729 |
| 20 | 1767 |
| 21 | 1893 |
| 22 | 2257 |
| 23 | 2379 |
| 24 | 2801 |
| 25 | 2863 |
| 26 | 3541 |
| 27 | 3751 |
| 28 | 3783 |
| 29 | 3991 |
| 30 | 4123 |
| 31 | 4557 |
| 32 | 4953 |
| 33 | 5113 |
| 34 | 5403 |
| 35 | 5673 |
| 36 | 6321 |
| 37 | 6897 |
| 38 | 6973 |
| 39 | 7189 |
| 40 | 7581 |
| 41 | 8011 |
| 42 | 9507 |
| 43 | 9517 |
| 44 | 9841 |
| 45 | 10153 |
[1,13,31,57,121,133,183,307,381,403,553,741,781, 871,993,1093,1407,1723,1729,1767,1893,2257,2379, 2801,2863,3541,3751,3783,3991,4123,4557,4953,5113, 5403,5673,6321,6897,6973,7189,7581,8011,9507,9517, 9841,10153] |