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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 0 |
| 3 | 7 |
| 4 | 25 |
| 5 | 3991 |
| 6 | 3923773 |
| 7 | 4901627 |
| 8 | 527165212865 |
| 9 | 9823031039961293027 |
| 10 | 123877274974851473572937 |
| 11 | 443645907754951021537851199 |
| 12 | 246932542361393897304051461727006396307 |
| 13 | 1474846779473982897350113519971401527250089 |
| 14 | 46578509609937575127608478711343978511593638945099881 |
[1,0,7,25,3991,3923773,4901627,527165212865, 9823031039961293027,123877274974851473572937, 443645907754951021537851199, 246932542361393897304051461727006396307, 1474846779473982897350113519971401527250089, 46578509609937575127608478711343978511593638945099\ 881] |