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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 104 |
| 3 | 3490 |
| 4 | 158594 |
| 5 | 10408388 |
| 6 | 628485305 |
| 7 | 39291988976 |
| 8 | 2452094749578 |
| 9 | 153330900615477 |
| 10 | 9596145600115920 |
| 11 | 600655609880996664 |
| 12 | 37603455857635324646 |
| 13 | 2354220701177190634835 |
| 14 | 147393065029642108781762 |
[0,104,3490,158594,10408388,628485305,39291988976, 2452094749578,153330900615477,9596145600115920, 600655609880996664,37603455857635324646, 2354220701177190634835,147393065029642108781762] |