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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 377 |
| 3 | 31011 |
| 4 | 2967962 |
| 5 | 273135341 |
| 6 | 25229090418 |
| 7 | 2328401610722 |
| 8 | 214902490767900 |
| 9 | 19834301854942268 |
| 10 | 1830596543877749997 |
| 11 | 168953877741724924425 |
| 12 | 15593502858029836985937 |
| 13 | 1439193533932774658262451 |
[0,377,31011,2967962,273135341,25229090418, 2328401610722,214902490767900,19834301854942268, 1830596543877749997,168953877741724924425, 15593502858029836985937,1439193533932774658262451] |