| n | a(n) |
|---|---|
| 1 | 774 |
| 2 | 25659 |
| 3 | 315376 |
| 4 | 2170435 |
| 5 | 10384566 |
| 6 | 38804209 |
| 7 | 121263104 |
| 8 | 330977421 |
| 9 | 812445670 |
| 10 | 1830978831 |
| 11 | 3846189744 |
| 12 | 7617096799 |
| 13 | 14347945366 |
| 14 | 25885421205 |
| 15 | 44979623296 |
| 16 | 75622979129 |
| 17 | 123483223494 |
| 18 | 196448622211 |
| 19 | 305305805040 |
[774,25659,315376,2170435,10384566,38804209, 121263104,330977421,812445670,1830978831, 3846189744,7617096799,14347945366,25885421205, 44979623296,75622979129,123483223494,196448622211, 305305805040] |