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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | -3 |
| 2 | 4 |
| 3 | -1 |
| 4 | -9 |
| 5 | 24 |
| 6 | -31 |
| 7 | 5 |
| 8 | 76 |
| 9 | -193 |
| 10 | 239 |
| 11 | -16 |
| 12 | -639 |
| 13 | 1549 |
| 14 | -1836 |
| 15 | -65 |
| 16 | 5351 |
| 17 | -12408 |
| 18 | 14049 |
| 19 | 2069 |
| 20 | -44644 |
| 21 | 99199 |
| 22 | -107041 |
| 23 | -28960 |
| 24 | 371201 |
| 25 | -791523 |
| 26 | 811684 |
| 27 | 330879 |
| 28 | -3076649 |
| 29 | 6303224 |
| 30 | -6122271 |
| 31 | -3438555 |
| 32 | 25424876 |
| 33 | -50094913 |
| 34 | 45901519 |
| 35 | 33811664 |
| 36 | -209521279 |
| 37 | 397320749 |
| 38 | -341787276 |
[1,-3,4,-1,-9,24,-31,5,76,-193,239,-16,-639,1549, -1836,-65,5351,-12408,14049,2069,-44644,99199, -107041,-28960,371201,-791523,811684,330879, -3076649,6303224,-6122271,-3438555,25424876, -50094913,45901519,33811664,-209521279,397320749, -341787276] |