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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 0 |
| 3 | 1 |
| 4 | -3 |
| 5 | 7 |
| 6 | -14 |
| 7 | 25 |
| 8 | -41 |
| 9 | 64 |
| 10 | -100 |
| 11 | 165 |
| 12 | -294 |
| 13 | 550 |
| 14 | -1023 |
| 15 | 1795 |
| 16 | -2823 |
| 17 | 3658 |
| 18 | -2882 |
| 19 | -2873 |
| 20 | 20435 |
| 21 | -62185 |
| 22 | 148863 |
| 23 | -314008 |
| 24 | 613957 |
| 25 | -1155794 |
| 26 | 2175823 |
| 27 | -4244026 |
| 28 | 8753538 |
| 29 | -19006490 |
| 30 | 42471787 |
| 31 | -95234575 |
| 32 | 210395407 |
| 33 | -453413866 |
| 34 | 949508390 |
| 35 | -1931939460 |
[1,0,0,1,-3,7,-14,25,-41,64,-100,165,-294,550, -1023,1795,-2823,3658,-2882,-2873,20435,-62185, 148863,-314008,613957,-1155794,2175823,-4244026, 8753538,-19006490,42471787,-95234575,210395407, -453413866,949508390,-1931939460] |