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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 14 |
| 2 | 161 |
| 3 | 1678 |
| 4 | 15524 |
| 5 | 134844 |
| 6 | 1113797 |
| 7 | 8791370 |
| 8 | 66966377 |
| 9 | 495285252 |
| 10 | 3566916109 |
| 11 | 25105766336 |
| 12 | 173194384597 |
| 13 | 1173147905334 |
| 14 | 7817490983485 |
| 15 | 51328840496684 |
| 16 | 332461481754542 |
| 17 | 2126710086580138 |
| 18 | 13448964442250078 |
| 19 | 84145658562788118 |
[1,14,161,1678,15524,134844,1113797,8791370, 66966377,495285252,3566916109,25105766336, 173194384597,1173147905334,7817490983485, 51328840496684,332461481754542,2126710086580138, 13448964442250078,84145658562788118] |