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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | -1 |
| 3 | 1 |
| 4 | -3 |
| 5 | 1 |
| 6 | 2 |
| 7 | -8 |
| 8 | 7 |
| 9 | -1 |
| 10 | 8 |
| 11 | -36 |
| 12 | 43 |
| 13 | -15 |
| 14 | 1 |
| 15 | 64 |
| 16 | -304 |
| 17 | 414 |
| 18 | -198 |
| 19 | 31 |
| 20 | -1 |
| 21 | 1024 |
| 22 | -4992 |
| 23 | 7224 |
| 24 | -3960 |
| 25 | 849 |
| 26 | -63 |
| 27 | 1 |
| 28 | 32768 |
| 29 | -161792 |
| 30 | 241088 |
| 31 | -140864 |
| 32 | 34674 |
| 33 | -3516 |
| 34 | 127 |
| 35 | -1 |
| 36 | 2097152 |
| 37 | -10420224 |
| 38 | 15752192 |
| 39 | -9492480 |
| 40 | 2493640 |
| 41 | -290412 |
[1,-1,1,-3,1,2,-8,7,-1,8,-36,43,-15,1,64,-304,414, -198,31,-1,1024,-4992,7224,-3960,849,-63,1,32768, -161792,241088,-140864,34674,-3516,127,-1,2097152, -10420224,15752192,-9492480,2493640,-290412] |