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| n | a(n) |
|---|---|
| 9 | 7087261 |
| 10 | 492006708 |
| 11 | 19423259316 |
| 12 | 574637640288 |
| 13 | 14193955791576 |
| 14 | 309660911167464 |
| 15 | 6171397007611848 |
| 16 | 114853532449557600 |
| 17 | 2026594842428425320 |
| 18 | 34277110454602760762 |
| 19 | 560261324259420037164 |
| 20 | 8904738970375872782112 |
| 21 | 138290600270036591006520 |
| 22 | 2106511986693346884064584 |
[7087261,492006708,19423259316,574637640288, 14193955791576,309660911167464,6171397007611848, 114853532449557600,2026594842428425320, 34277110454602760762,560261324259420037164, 8904738970375872782112,138290600270036591006520, 2106511986693346884064584] |