| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 0 |
| 3 | 276 |
| 4 | -1748 |
| 5 | 4854 |
| 6 | 0 |
| 7 | -16720 |
| 8 | 44552 |
| 9 | -107295 |
| 10 | 0 |
| 11 | 534636 |
| 12 | -482448 |
| 13 | -577714 |
| 14 | 0 |
| 15 | 1339704 |
| 16 | 2528206 |
| 17 | -6905910 |
| 18 | 0 |
| 19 | 10661444 |
| 20 | -8484792 |
| 21 | -4614720 |
| 22 | 0 |
| 23 | 18643296 |
| 24 | 12296352 |
| 25 | -25383005 |
| 26 | 0 |
| 27 | -75928312 |
| 28 | 29226560 |
| 29 | 128406654 |
| 30 | 0 |
| 31 | -52843144 |
| 32 | -151821160 |
| 33 | 147559536 |
| 34 | 0 |
| 35 | -81158880 |
[1,0,276,-1748,4854,0,-16720,44552,-107295,0, 534636,-482448,-577714,0,1339704,2528206,-6905910, 0,10661444,-8484792,-4614720,0,18643296,12296352, -25383005,0,-75928312,29226560,128406654,0, -52843144,-151821160,147559536,0,-81158880] |