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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 14 |
| 2 | -142 |
| 3 | -11452 |
| 4 | -16340 |
| 5 | 15254344 |
| 6 | 241175416 |
| 7 | -27559353808 |
| 8 | -956451987568 |
| 9 | 61130164870880 |
| 10 | 3765349254374176 |
| 11 | -153905067702335936 |
| 12 | -16154239475595889472 |
| 13 | 398079601942332103808 |
| 14 | 76554842682960987793280 |
| 15 | -811944878829661686113536 |
| 16 | -399500280706227471717519104 |
[1,14,-142,-11452,-16340,15254344,241175416, -27559353808,-956451987568,61130164870880, 3765349254374176,-153905067702335936, -16154239475595889472,398079601942332103808, 76554842682960987793280,-811944878829661686113536, -399500280706227471717519104] |