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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | -1 |
| 2 | 0 |
| 3 | -1 |
| 4 | 0 |
| 5 | 1 |
| 6 | 2 |
| 7 | 3 |
| 8 | 3 |
| 9 | 1 |
| 10 | -3 |
| 11 | -9 |
| 12 | -17 |
| 13 | -25 |
| 14 | -29 |
| 15 | -23 |
| 16 | 2 |
| 17 | 54 |
| 18 | 134 |
| 19 | 232 |
| 20 | 320 |
| 21 | 347 |
| 22 | 243 |
| 23 | -71 |
| 24 | -660 |
| 25 | -1531 |
| 26 | -2575 |
| 27 | -3504 |
| 28 | -3804 |
| 29 | -2747 |
| 30 | 488 |
| 31 | 6537 |
| 32 | 15395 |
| 33 | 25819 |
| 34 | 34716 |
| 35 | 36780 |
| 36 | 24771 |
| 37 | -9096 |
| 38 | -70197 |
| 39 | -156811 |
| 40 | -254178 |
| 41 | -328753 |
| 42 | -325431 |
| 43 | -171870 |
| 44 | 205308 |
| 45 | 848411 |
| 46 | 1719877 |
| 47 | 2642829 |
| 48 | 3247519 |
| 49 | 2953230 |
| 50 | 1027655 |
| 51 | -3228913 |
| 52 | -10138114 |
[1,-1,0,-1,0,1,2,3,3,1,-3,-9,-17,-25,-29,-23,2,54, 134,232,320,347,243,-71,-660,-1531,-2575,-3504, -3804,-2747,488,6537,15395,25819,34716,36780, 24771,-9096,-70197,-156811,-254178,-328753, -325431,-171870,205308,848411,1719877,2642829, 3247519,2953230,1027655,-3228913,-10138114] |