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| n | a(n) |
|---|---|
| 1 | 57 |
| 2 | 4065 |
| 3 | 262017 |
| 4 | 16773477 |
| 5 | 1073471633 |
| 6 | 68702054721 |
| 7 | 4396930705721 |
| 8 | 281403528942981 |
| 9 | 18009823835462025 |
| 10 | 1152628595873880165 |
| 11 | 73768221838169850821 |
| 12 | 4721165666554240664629 |
| 13 | 302154568669832438214889 |
[57,4065,262017,16773477,1073471633,68702054721, 4396930705721,281403528942981,18009823835462025, 1152628595873880165,73768221838169850821, 4721165666554240664629,302154568669832438214889] |