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| n | a(n) |
|---|---|
| 1 | 28 |
| 2 | 45 |
| 3 | 153 |
| 4 | 171 |
| 5 | 325 |
| 6 | 4753 |
| 7 | 7381 |
| 8 | 29161 |
| 9 | 56953 |
| 10 | 65341 |
| 11 | 166753 |
| 12 | 354061 |
| 13 | 5649841 |
| 14 | 6060421 |
| 15 | 6835753 |
| 16 | 6924781 |
| 17 | 12708361 |
| 18 | 19478161 |
| 19 | 24231241 |
| 20 | 52035301 |
| 21 | 56791153 |
| 22 | 147258541 |
| 23 | 186660181 |
| 24 | 282304441 |
| 25 | 326081953 |
| 26 | 520273153 |
| 27 | 536657941 |
| 28 | 704531953 |
| 29 | 784139401 |
| 30 | 1215121753 |
[28,45,153,171,325,4753,7381,29161,56953,65341, 166753,354061,5649841,6060421,6835753,6924781, 12708361,19478161,24231241,52035301,56791153, 147258541,186660181,282304441,326081953,520273153, 536657941,704531953,784139401,1215121753] |