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| n | a(n) |
|---|---|
| 1 | 1729 |
| 2 | 670033 |
| 3 | 6840001 |
| 4 | 83099521 |
| 5 | 193708801 |
| 6 | 321197185 |
| 7 | 367804801 |
| 8 | 484662529 |
| 9 | 1752710401 |
| 10 | 2320690177 |
| 11 | 5064928705 |
| 12 | 12820178449 |
| 13 | 32220147601 |
| 14 | 257124585601 |
| 15 | 270177600001 |
| 16 | 301036080385 |
| 17 | 7043394657601 |
| 18 | 13237329899521 |
| 19 | 14276860416001 |
| 20 | 85661522006401 |
| 21 | 119377939968001 |
[1729,670033,6840001,83099521,193708801,321197185, 367804801,484662529,1752710401,2320690177, 5064928705,12820178449,32220147601,257124585601, 270177600001,301036080385,7043394657601, 13237329899521,14276860416001,85661522006401, 119377939968001] |