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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 0 |
| 5 | 1 |
| 6 | -1 |
| 7 | 2 |
| 8 | -3 |
| 9 | 3 |
| 10 | -3 |
| 11 | 4 |
| 12 | -2 |
| 13 | 8 |
| 14 | 9 |
| 15 | 17 |
| 16 | 29 |
| 17 | 50 |
| 18 | 83 |
| 19 | 107 |
| 20 | 56 |
| 21 | 239 |
| 22 | -243 |
| 23 | 1103 |
| 24 | -2351 |
| 25 | 3775 |
| 26 | -7227 |
| 27 | 14463 |
| 28 | -18648 |
| 29 | 55283 |
| 30 | 54011 |
| 31 | 256666 |
| 32 | 698301 |
| 33 | 2059753 |
| 34 | 5324929 |
| 35 | 9820288 |
| 36 | 15128062 |
| 37 | 55075036 |
| 38 | -28437275 |
| 39 | 503857819 |
| 40 | -1438167267 |
| 41 | 4083736906 |
[1,1,1,1,0,1,-1,2,-3,3,-3,4,-2,8,9,17,29,50,83, 107,56,239,-243,1103,-2351,3775,-7227,14463, -18648,55283,54011,256666,698301,2059753,5324929, 9820288,15128062,55075036,-28437275,503857819, -1438167267,4083736906] |