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| n | a(n) |
|---|---|
| -2 | 0 |
| -1 | 0 |
| 0 | 1 |
| 1 | 3 |
| 2 | 1 |
| 3 | 0 |
| 4 | -1 |
| 5 | 0 |
| 6 | 2 |
| 7 | 0 |
| 8 | -3 |
| 9 | 0 |
| 10 | 5 |
| 11 | 0 |
| 12 | -691 |
| 13 | 0 |
| 14 | 140 |
| 15 | 0 |
| 16 | -10851 |
| 17 | 0 |
| 18 | 219335 |
| 19 | 0 |
| 20 | -1222277 |
| 21 | 0 |
| 22 | 1709026 |
| 23 | 0 |
| 24 | -1181820455 |
| 25 | 0 |
| 26 | 538845489 |
| 27 | 0 |
| 28 | -23749461029 |
| 29 | 0 |
| 30 | 68926730208040 |
| 31 | 0 |
| 32 | -84802531453387 |
| 33 | 0 |
| 34 | 270657225128535 |
| 35 | 0 |
| 36 | -26315271553053477373 |
| 37 | 0 |
| 38 | 380899208799402670 |
| 39 | 0 |
| 40 | -1827579029475143854357 |
[0,0,1,3,1,0,-1,0,2,0,-3,0,5,0,-691,0,140,0, -10851,0,219335,0,-1222277,0,1709026,0, -1181820455,0,538845489,0,-23749461029,0, 68926730208040,0,-84802531453387,0, 270657225128535,0,-26315271553053477373,0, 380899208799402670,0,-1827579029475143854357] |