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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 19 |
| 4 | 1339 |
| 5 | 126121 |
| 6 | 22936441 |
| 7 | 6074972299 |
| 8 | 2211448022179 |
| 9 | 1068596557553041 |
| 10 | 664819086091727281 |
| 11 | 515877228619611775939 |
| 12 | 487979294159765398810699 |
| 13 | 553450493012139154035025081 |
| 14 | 740913321416698764680850005161 |
| 15 | 1156005387497662040937215014248379 |
| 16 | 2079652309814657123017240379855646259 |
[1,1,19,1339,126121,22936441,6074972299, 2211448022179,1068596557553041,664819086091727281, 515877228619611775939,487979294159765398810699, 553450493012139154035025081, 740913321416698764680850005161, 1156005387497662040937215014248379, 2079652309814657123017240379855646259] |