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| n | a(n) |
|---|---|
| 1 | 19 |
| 2 | 367 |
| 3 | 107514 |
| 4 | 27274339 |
| 5 | 8491666657 |
| 6 | 2535097569590 |
| 7 | 787253224440475 |
| 8 | 245171742019939573 |
| 9 | 76738178529099193548 |
| 10 | 24012353212352081646593 |
| 11 | 7515855702189389861141905 |
| 12 | 2352317017039363043975969464 |
[19,367,107514,27274339,8491666657,2535097569590, 787253224440475,245171742019939573, 76738178529099193548,24012353212352081646593, 7515855702189389861141905, 2352317017039363043975969464] |