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| n | a(n) |
|---|---|
| 0 | 2 |
| 1 | -4 |
| 2 | 230 |
| 3 | -3848 |
| 4 | 497098 |
| 5 | -14513420 |
| 6 | 5158219950 |
| 7 | -47697728016 |
| 8 | 177486854140818 |
| 9 | 15468174530073068 |
| 10 | 17111710452932214902 |
| 11 | 4853812039531225331432 |
| 12 | 4006433870309112576215386 |
[2,-4,230,-3848,497098,-14513420,5158219950, -47697728016,177486854140818,15468174530073068, 17111710452932214902,4853812039531225331432, 4006433870309112576215386] |