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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | -1 |
| 2 | -1 |
| 3 | 157 |
| 4 | 65911 |
| 5 | -918227 |
| 6 | -234932171 |
| 7 | 592642957 |
| 8 | 149463069056137 |
| 9 | -16648792617135289 |
| 10 | -286497627060094895989 |
| 11 | 3538603031642540133299 |
| 12 | 57674522110226646157873673 |
| 13 | -713986824035720029666660757 |
| 14 | -6478234620955890989297122598683 |
[1,-1,-1,157,65911,-918227,-234932171,592642957, 149463069056137,-16648792617135289, -286497627060094895989,3538603031642540133299, 57674522110226646157873673, -713986824035720029666660757, -6478234620955890989297122598683] |