| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 11 |
| 3 | 92 |
| 4 | 1157 |
| 5 | 19142 |
| 6 | 403691 |
| 7 | 10312304 |
| 8 | 311348897 |
| 9 | 10826298914 |
| 10 | 426196716090 |
| 11 | 18700516849302 |
| 12 | 903666922873158 |
| 13 | 47592378143008974 |
| 14 | 2708388575679431454 |
| 15 | 165309083872549538190 |
| 16 | 10753269337589887334670 |
| 17 | 741379205762167719365268 |
[1,2,11,92,1157,19142,403691,10312304,311348897, 10826298914,426196716090,18700516849302, 903666922873158,47592378143008974, 2708388575679431454,165309083872549538190, 10753269337589887334670,741379205762167719365268] |