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| n | a(n) |
|---|---|
| 1 | 7 |
| 2 | 91 |
| 3 | 1729 |
| 4 | 53599 |
| 5 | 1983163 |
| 6 | 85276009 |
| 7 | 5201836549 |
| 8 | 348523048783 |
| 9 | 25442182561159 |
| 10 | 2009932422331561 |
| 11 | 194963444966161417 |
| 12 | 20081234831514625951 |
| 13 | 2188854596635094228659 |
| 14 | 277984533772656967039693 |
| 15 | 38639850194399318418517327 |
| 16 | 5834617379354297081196116377 |
[7,91,1729,53599,1983163,85276009,5201836549, 348523048783,25442182561159,2009932422331561, 194963444966161417,20081234831514625951, 2188854596635094228659,277984533772656967039693, 38639850194399318418517327, 5834617379354297081196116377] |