The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | -3 |
| 3 | 16 |
| 4 | 2814 |
| 5 | -1092180 |
| 6 | -3603928080 |
| 7 | 58978973128440 |
| 8 | 5974833380453777520 |
| 9 | -3294186866481455009752320 |
| 10 | -10279982482873484428390722523200 |
| 11 | 175129088125361734252730927280177244800 |
[0,1,-3,16,2814,-1092180,-3603928080, 58978973128440,5974833380453777520, -3294186866481455009752320, -10279982482873484428390722523200, 175129088125361734252730927280177244800] |