| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | -3 |
| 2 | 57 |
| 3 | -2587 |
| 4 | 217137 |
| 5 | -29025587 |
| 6 | 5664605801 |
| 7 | -1519556355275 |
| 8 | 536514935904609 |
| 9 | -241225069255390307 |
| 10 | 134580033555427233689 |
| 11 | -91237165395466088195963 |
| 12 | 73877505225687035803070353 |
| 13 | -70425423338543411535873624467 |
| 14 | 78071169657855750497737512497097 |
[1,-3,57,-2587,217137,-29025587,5664605801, -1519556355275,536514935904609, -241225069255390307,134580033555427233689, -91237165395466088195963, 73877505225687035803070353, -70425423338543411535873624467, 78071169657855750497737512497097] |