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| n | a(n) |
|---|---|
| 0 | 3 |
| 1 | -2 |
| 2 | -6 |
| 3 | -14 |
| 4 | -6 |
| 5 | 202 |
| 6 | 1506 |
| 7 | 4594 |
| 8 | -29814 |
| 9 | -573062 |
| 10 | -4098606 |
| 11 | 2741026 |
| 12 | 487823034 |
| 13 | 6657110122 |
| 14 | 28995776706 |
| 15 | -685482188846 |
| 16 | -17937265077654 |
| 17 | -181680546169382 |
| 18 | 963087154054194 |
| 19 | 72085899963332866 |
| 20 | 1289184007236331674 |
| 21 | 4679677879996688842 |
| 22 | -383123191395931184094 |
[3,-2,-6,-14,-6,202,1506,4594,-29814,-573062, -4098606,2741026,487823034,6657110122,28995776706, -685482188846,-17937265077654,-181680546169382, 963087154054194,72085899963332866, 1289184007236331674,4679677879996688842, -383123191395931184094] |