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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | -4 |
| 2 | 256 |
| 3 | -67072 |
| 4 | 49479680 |
| 5 | -82817122304 |
| 6 | 273099601739776 |
| 7 | -1606512897507196928 |
| 8 | 15659025634284911198208 |
| 9 | -238894370882781809622384640 |
| 10 | 5451274531297360096585324691456 |
| 11 | -179296966081016547805899589056200704 |
| 12 | 8242844472527700570663352676068232265728 |
| 13 | -516102091343047279882754030489835708929277952 |
| 14 | 43042816831864259208854418353099287467922680709120 |
[1,-4,256,-67072,49479680,-82817122304, 273099601739776,-1606512897507196928, 15659025634284911198208, -238894370882781809622384640, 5451274531297360096585324691456, -179296966081016547805899589056200704, 8242844472527700570663352676068232265728, -516102091343047279882754030489835708929277952, 43042816831864259208854418353099287467922680709120\ ] |