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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | -1 |
| 2 | 2 |
| 3 | -5 |
| 4 | 10 |
| 5 | -18 |
| 6 | 32 |
| 7 | -59 |
| 8 | 106 |
| 9 | -181 |
| 10 | 305 |
| 11 | -518 |
| 12 | 867 |
| 13 | -1418 |
| 14 | 2301 |
| 15 | -3724 |
| 16 | 5966 |
| 17 | -9448 |
| 18 | 14862 |
| 19 | -23263 |
| 20 | 36165 |
| 21 | -55802 |
| 22 | 85609 |
| 23 | -130732 |
| 24 | 198574 |
| 25 | -299941 |
| 26 | 450946 |
| 27 | -675153 |
| 28 | 1006395 |
| 29 | -1493598 |
| 30 | 2207928 |
| 31 | -3251926 |
| 32 | 4771934 |
| 33 | -6977018 |
| 34 | 10166502 |
| 35 | -14766512 |
| 36 | 21379861 |
[1,-1,2,-5,10,-18,32,-59,106,-181,305,-518,867, -1418,2301,-3724,5966,-9448,14862,-23263,36165, -55802,85609,-130732,198574,-299941,450946, -675153,1006395,-1493598,2207928,-3251926,4771934, -6977018,10166502,-14766512,21379861] |