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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 14 |
| 2 | -1054 |
| 3 | -49756 |
| 4 | 3255916 |
| 5 | 294362824 |
| 6 | -16228395464 |
| 7 | -2434918716496 |
| 8 | 107909598279056 |
| 9 | 25859921540866784 |
| 10 | -851944079067245024 |
| 11 | -335176236367776230336 |
| 12 | 7021763778025751855296 |
| 13 | 5125948238409003981014144 |
| 14 | -42340386055192411914361984 |
| 15 | -90296859576930263434548587776 |
[1,14,-1054,-49756,3255916,294362824,-16228395464, -2434918716496,107909598279056,25859921540866784, -851944079067245024,-335176236367776230336, 7021763778025751855296,5125948238409003981014144, -42340386055192411914361984, -90296859576930263434548587776] |