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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | -1 |
| 3 | 8 |
| 4 | -6 |
| 5 | 1 |
| 6 | 21 |
| 7 | -25 |
| 8 | 9 |
| 9 | -1 |
| 10 | 55 |
| 11 | -90 |
| 12 | 51 |
| 13 | -12 |
| 14 | 1 |
| 15 | 144 |
| 16 | -300 |
| 17 | 234 |
| 18 | -86 |
| 19 | 15 |
| 20 | -1 |
| 21 | 377 |
| 22 | -954 |
| 23 | 951 |
| 24 | -480 |
| 25 | 130 |
| 26 | -18 |
| 27 | 1 |
| 28 | 987 |
| 29 | -2939 |
| 30 | 3573 |
| 31 | -2305 |
| 32 | 855 |
| 33 | -183 |
| 34 | 21 |
| 35 | -1 |
| 36 | 2584 |
| 37 | -8850 |
| 38 | 12707 |
| 39 | -10008 |
| 40 | 4740 |
| 41 | -1386 |
| 42 | 245 |
| 43 | -24 |
| 44 | 1 |
| 45 | 6765 |
| 46 | -26195 |
| 47 | 43398 |
| 48 | -40426 |
| 49 | 23373 |
| 50 | -8715 |
| 51 | 2100 |
| 52 | -316 |
| 53 | 27 |
| 54 | -1 |
[1,3,-1,8,-6,1,21,-25,9,-1,55,-90,51,-12,1,144, -300,234,-86,15,-1,377,-954,951,-480,130,-18,1, 987,-2939,3573,-2305,855,-183,21,-1,2584,-8850, 12707,-10008,4740,-1386,245,-24,1,6765,-26195, 43398,-40426,23373,-8715,2100,-316,27,-1] |