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| n | a(n) |
|---|---|
| 2 | 0 |
| 3 | 1 |
| 4 | 0 |
| 5 | 3 |
| 6 | 1 |
| 7 | 0 |
| 8 | 21 |
| 9 | -34 |
| 10 | 101 |
| 11 | -249 |
| 12 | 921 |
| 13 | -2524 |
| 14 | 5613 |
| 15 | -8914 |
| 16 | 6206 |
[0,1,0,3,1,0,21,-34,101,-249,921,-2524,5613,-8914, 6206] |