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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | -1 |
| 3 | -3 |
| 4 | 1 |
| 5 | 9 |
| 6 | 5 |
| 7 | -19 |
| 8 | -27 |
| 9 | 29 |
| 10 | 93 |
| 11 | -3 |
| 12 | -243 |
| 13 | -179 |
| 14 | 493 |
| 15 | 845 |
| 16 | -627 |
| 17 | -2675 |
| 18 | -435 |
| 19 | 6605 |
| 20 | 6221 |
| 21 | -12339 |
| 22 | -25651 |
| 23 | 12237 |
| 24 | 75981 |
| 25 | 26829 |
| 26 | -176435 |
| 27 | -205619 |
| 28 | 299213 |
| 29 | 764109 |
| 30 | -187187 |
| 31 | -2126643 |
| 32 | -1153843 |
| 33 | 4627661 |
| 34 | 6560973 |
| 35 | -6947635 |
| 36 | -22377267 |
| 37 | 773325 |
| 38 | 58649805 |
| 39 | 43207885 |
| 40 | -118846259 |
| 41 | -203715379 |
[1,1,-1,-3,1,9,5,-19,-27,29,93,-3,-243,-179,493, 845,-627,-2675,-435,6605,6221,-12339,-25651,12237, 75981,26829,-176435,-205619,299213,764109,-187187, -2126643,-1153843,4627661,6560973,-6947635, -22377267,773325,58649805,43207885,-118846259, -203715379] |