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| n | a(n) |
|---|---|
| 1 | -1 |
| 2 | 4 |
| 3 | -6 |
| 4 | 30 |
| 5 | -18 |
| 6 | 42 |
| 7 | -30 |
| 8 | -22 |
| 9 | 128 |
| 10 | -112 |
| 11 | 98 |
| 12 | 90 |
| 13 | -78 |
| 14 | -70 |
| 15 | 36 |
| 16 | 248 |
| 17 | -232 |
| 18 | 158 |
| 19 | 150 |
| 20 | -280 |
| 21 | 182 |
| 22 | -142 |
| 23 | -130 |
| 24 | 420 |
| 25 | 210 |
| 26 | -198 |
| 27 | 222 |
| 28 | -210 |
| 29 | -1074 |
| 30 | 1326 |
| 31 | -238 |
| 32 | 560 |
| 33 | -1092 |
| 34 | 1212 |
| 35 | -592 |
| 36 | 36 |
| 37 | 350 |
| 38 | -310 |
| 39 | 36 |
| 40 | 728 |
| 41 | -1428 |
| 42 | 1548 |
| 43 | -378 |
| 44 | 402 |
| 45 | -1966 |
| 46 | 144 |
| 47 | 1832 |
| 48 | 462 |
| 49 | -450 |
| 50 | -442 |
[-1,4,-6,30,-18,42,-30,-22,128,-112,98,90,-78,-70, 36,248,-232,158,150,-280,182,-142,-130,420,210, -198,222,-210,-1074,1326,-238,560,-1092,1212,-592, 36,350,-310,36,728,-1428,1548,-378,402,-1966,144, 1832,462,-450,-442] |