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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 41 |
| 2 | 860 |
| 3 | 12299 |
| 4 | 134848 |
| 5 | 1208516 |
| 6 | 9217866 |
| 7 | 61521649 |
| 8 | 366624707 |
| 9 | 1980976460 |
| 10 | 9822684102 |
| 11 | 45131469838 |
| 12 | 193676694825 |
| 13 | 781450953227 |
| 14 | 2981168796829 |
| 15 | 10804753100301 |
| 16 | 37358311880918 |
| 17 | 123672795559348 |
| 18 | 393238376839063 |
[1,41,860,12299,134848,1208516,9217866,61521649, 366624707,1980976460,9822684102,45131469838, 193676694825,781450953227,2981168796829, 10804753100301,37358311880918,123672795559348, 393238376839063] |