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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | -1 |
| 2 | 1 |
| 3 | 167 |
| 4 | -14303 |
| 5 | 1383887 |
| 6 | -170123615 |
| 7 | 26560717367 |
| 8 | -5162935778879 |
| 9 | 1219537456849055 |
| 10 | -340794504958201919 |
| 11 | 109077799391707298759 |
| 12 | -38112045733323708444959 |
| 13 | 13139859774638771226676847 |
[1,-1,1,167,-14303,1383887,-170123615,26560717367, -5162935778879,1219537456849055, -340794504958201919,109077799391707298759, -38112045733323708444959, 13139859774638771226676847] |