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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | -1 |
| 4 | -14 |
| 5 | 47 |
| 6 | 3527 |
| 7 | -4787 |
| 8 | -6421 |
| 9 | 11467 |
| 10 | 523798423 |
| 11 | -3983516101 |
| 12 | -1424955853 |
| 13 | 1543134469573 |
| 14 | 2574843844561 |
| 15 | -116899300585349 |
| 16 | -130778050341326449 |
| 17 | 86229762965796109 |
| 18 | 597078237074537664671 |
[1,1,-1,-14,47,3527,-4787,-6421,11467,523798423, -3983516101,-1424955853,1543134469573, 2574843844561,-116899300585349, -130778050341326449,86229762965796109, 597078237074537664671] |