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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | -1 |
| 3 | -2 |
| 4 | 3 |
| 5 | 118 |
| 6 | -199068134034785153195409370979964879499768447341765846329146257207125965412281784631240438088 |
[1,0,-1,-2,3,118, -1990681340347851531954093709799648794997684473417\ 65846329146257207125965412281784631240438088] |