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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 27 |
| 3 | 463 |
| 4 | 12217 |
| 5 | 441383 |
| 6 | 20338679 |
| 7 | 1141073295 |
| 8 | 75473055841 |
| 9 | 5748862140283 |
| 10 | 495446888127507 |
| 11 | 47648289796265871 |
| 12 | 5057570671179281161 |
| 13 | 587173799850231036207 |
| 14 | 74005641366738437835967 |
| 15 | 10062023872139208015273375 |
| 16 | 1467822867614662009540883265 |
[3,27,463,12217,441383,20338679,1141073295, 75473055841,5748862140283,495446888127507, 47648289796265871,5057570671179281161, 587173799850231036207,74005641366738437835967, 10062023872139208015273375, 1467822867614662009540883265] |