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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 0 |
| 4 | -2 |
| 5 | 5 |
| 6 | 11 |
| 7 | -14 |
| 8 | -34 |
| 9 | 57 |
| 10 | 127 |
| 11 | -209 |
| 12 | -461 |
| 13 | 793 |
| 14 | 1717 |
| 15 | -3002 |
| 16 | -6434 |
| 17 | 11441 |
| 18 | 24311 |
| 19 | -43757 |
| 20 | -92377 |
| 21 | 167961 |
| 22 | 352717 |
| 23 | -646645 |
| 24 | -1352077 |
| 25 | 2496145 |
| 26 | 5200301 |
| 27 | -9657699 |
| 28 | -20058299 |
| 29 | 37442161 |
| 30 | 77558761 |
| 31 | -145422674 |
| 32 | -300540194 |
| 33 | 565722721 |
| 34 | 1166803111 |
| 35 | -2203961429 |
[1,2,0,-2,5,11,-14,-34,57,127,-209,-461,793,1717, -3002,-6434,11441,24311,-43757,-92377,167961, 352717,-646645,-1352077,2496145,5200301,-9657699, -20058299,37442161,77558761,-145422674,-300540194, 565722721,1166803111,-2203961429] |