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| n | a(n) |
|---|---|
| 1 | 386304 |
| 2 | 5392960 |
| 3 | 58713912 |
| 4 | 479373352 |
| 5 | 4020536064 |
| 6 | 28017797984 |
| 7 | 180889428840 |
| 8 | 1121650360344 |
| 9 | 6319289500688 |
| 10 | 34444479406504 |
| 11 | 179092290465784 |
| 12 | 888630251710856 |
| 13 | 4294129169205328 |
| 14 | 20034775965684704 |
| 15 | 91016922993551880 |
[386304,5392960,58713912,479373352,4020536064, 28017797984,180889428840,1121650360344, 6319289500688,34444479406504,179092290465784, 888630251710856,4294129169205328, 20034775965684704,91016922993551880] |