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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 16 |
| 3 | 265 |
| 4 | 7343 |
| 5 | 304186 |
| 6 | 17525812 |
| 7 | 1336221251 |
| 8 | 129980132305 |
| 9 | 15686404067098 |
| 10 | 2297230134084416 |
| 11 | 400977650310256537 |
| 12 | 82188611938415464231 |
| 13 | 19536244019455339261970 |
| 14 | 5328019975275896220786388 |
| 15 | 1651867356348327784988233291 |
| 16 | 577522171260292028520919811777 |
[1,2,16,265,7343,304186,17525812,1336221251, 129980132305,15686404067098,2297230134084416, 400977650310256537,82188611938415464231, 19536244019455339261970,5328019975275896220786388, 1651867356348327784988233291, 577522171260292028520919811777] |