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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | -1 |
| 3 | 1 |
| 4 | -3 |
| 5 | -8 |
| 6 | 3 |
| 7 | -15 |
| 8 | -119 |
| 9 | -217 |
| 10 | 15 |
| 11 | -105 |
| 12 | -1574 |
| 13 | -7440 |
| 14 | -10954 |
| 15 | 105 |
| 16 | -945 |
| 17 | -22679 |
| 18 | -194646 |
| 19 | -702874 |
| 20 | -892281 |
| 21 | 945 |
| 22 | -10395 |
| 23 | -363824 |
| 24 | -4885615 |
| 25 | -31288480 |
| 26 | -94892945 |
| 27 | -108046896 |
| 28 | 10395 |
| 29 | -135135 |
| 30 | -6486479 |
| 31 | -124999827 |
| 32 | -1232430275 |
| 33 | -6521470845 |
| 34 | -17442096461 |
| 35 | -18261339153 |
| 36 | 135135 |
[1,-1,1,-3,-8,3,-15,-119,-217,15,-105,-1574,-7440, -10954,105,-945,-22679,-194646,-702874,-892281, 945,-10395,-363824,-4885615,-31288480,-94892945, -108046896,10395,-135135,-6486479,-124999827, -1232430275,-6521470845,-17442096461,-18261339153, 135135] |