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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | -3 |
| 5 | 10 |
| 6 | -100 |
| 7 | 693 |
| 8 | -5383 |
| 9 | 47052 |
| 10 | -404934 |
| 11 | 3834435 |
| 12 | -36703359 |
| 13 | 357872502 |
| 14 | -3463205876 |
| 15 | 30476792955 |
| 16 | -198853998991 |
| 17 | -654085861096 |
| 18 | 67344661591926 |
| 19 | -2023504421641677 |
| 20 | 49767870277602057 |
[1,0,0,0,-3,10,-100,693,-5383,47052,-404934, 3834435,-36703359,357872502,-3463205876, 30476792955,-198853998991,-654085861096, 67344661591926,-2023504421641677, 49767870277602057] |