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| n | a(n) |
|---|---|
| 1 | 256 |
| 2 | 1314 |
| 3 | 7172 |
| 4 | 41062 |
| 5 | 239176 |
| 6 | 1413864 |
| 7 | 8412540 |
| 8 | 50339772 |
| 9 | 302048100 |
| 10 | 1816603960 |
| 11 | 10938456484 |
| 12 | 65931180904 |
| 13 | 397609705028 |
| 14 | 2398955670224 |
| 15 | 14477721582308 |
| 16 | 87393037228072 |
| 17 | 527613311664980 |
| 18 | 3185743214543624 |
[256,1314,7172,41062,239176,1413864,8412540, 50339772,302048100,1816603960,10938456484, 65931180904,397609705028,2398955670224, 14477721582308,87393037228072,527613311664980, 3185743214543624] |