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| n | a(n) |
|---|---|
| 2 | 242 |
| 3 | 49208 |
| 4 | 5049626 |
| 5 | 397551920 |
| 6 | 27839280002 |
| 7 | 1845793079528 |
| 8 | 119216755050026 |
| 9 | 7602793781214560 |
| 10 | 481851209165874962 |
| 11 | 30446042035976733848 |
| 12 | 1920876815510991751226 |
| 13 | 121101364739596962016400 |
| 14 | 7632056827800217741372322 |
| 15 | 480902390923479550619876168 |
[242,49208,5049626,397551920,27839280002, 1845793079528,119216755050026,7602793781214560, 481851209165874962,30446042035976733848, 1920876815510991751226,121101364739596962016400, 7632056827800217741372322, 480902390923479550619876168] |