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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | -16 |
| 4 | 6 |
| 5 | -748 |
| 6 | -804 |
| 7 | -34984 |
| 8 | -52666 |
| 9 | -56356 |
| 10 | 24756 |
| 11 | -4448200 |
| 12 | -5258468 |
| 13 | -298515176 |
| 14 | -441773704 |
| 15 | -573882480 |
| 16 | -472661434 |
| 17 | -50189743924 |
| 18 | -69289028796 |
| 19 | -4312446874696 |
| 20 | -6415753471180 |
| 21 | -9144394121976 |
| 22 | -11944124661496 |
| 23 | -913956731941456 |
| 24 | -1320357856911588 |
[1,2,-16,6,-748,-804,-34984,-52666,-56356,24756, -4448200,-5258468,-298515176,-441773704, -573882480,-472661434,-50189743924,-69289028796, -4312446874696,-6415753471180,-9144394121976, -11944124661496,-913956731941456, -1320357856911588] |