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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 10 |
| 3 | 110 |
| 4 | 2154 |
| 5 | 65902 |
| 6 | 2903446 |
| 7 | 174109546 |
| 8 | 13636888810 |
| 9 | 1351801926542 |
| 10 | 165434393561910 |
| 11 | 24497621303302666 |
| 12 | 4317170011370444982 |
| 13 | 892891315599103615082 |
| 14 | 214174328063904077240962 |
| 15 | 58974283594413521123672110 |
| 16 | 18476316023495768160707616490 |
[1,2,10,110,2154,65902,2903446,174109546, 13636888810,1351801926542,165434393561910, 24497621303302666,4317170011370444982, 892891315599103615082,214174328063904077240962, 58974283594413521123672110, 18476316023495768160707616490] |