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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | -1 |
| 2 | 1 |
| 3 | 5 |
| 4 | -10 |
| 5 | 5 |
| 6 | -61 |
| 7 | 183 |
| 8 | -183 |
| 9 | 61 |
| 10 | 1385 |
| 11 | -5540 |
| 12 | 8310 |
| 13 | -5540 |
| 14 | 1385 |
| 15 | -50521 |
| 16 | 252605 |
| 17 | -505210 |
| 18 | 505210 |
| 19 | -252605 |
| 20 | 50521 |
| 21 | 2702765 |
| 22 | -16216590 |
| 23 | 40541475 |
| 24 | -54055300 |
| 25 | 40541475 |
| 26 | -16216590 |
| 27 | 2702765 |
| 28 | -199360981 |
| 29 | 1395526867 |
| 30 | -4186580601 |
| 31 | 6977634335 |
| 32 | -6977634335 |
| 33 | 4186580601 |
| 34 | -1395526867 |
| 35 | 199360981 |
[1,-1,1,5,-10,5,-61,183,-183,61,1385,-5540,8310, -5540,1385,-50521,252605,-505210,505210,-252605, 50521,2702765,-16216590,40541475,-54055300, 40541475,-16216590,2702765,-199360981,1395526867, -4186580601,6977634335,-6977634335,4186580601, -1395526867,199360981] |