The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | -2 |
| 2 | 0 |
| 3 | 0 |
| 4 | -6 |
| 5 | 16 |
| 6 | 0 |
| 7 | 0 |
| 8 | 8 |
| 9 | -50 |
| 10 | 0 |
| 11 | 0 |
| 12 | 16 |
| 13 | 80 |
| 14 | 0 |
| 15 | 0 |
| 16 | -38 |
| 17 | -96 |
| 18 | 0 |
| 19 | 0 |
| 20 | -16 |
| 21 | 160 |
| 22 | 0 |
| 23 | 0 |
| 24 | 48 |
| 25 | -242 |
| 26 | 0 |
| 27 | 0 |
| 28 | 64 |
| 29 | 240 |
| 30 | 0 |
| 31 | 0 |
| 32 | -56 |
| 33 | -288 |
| 34 | 0 |
| 35 | 0 |
| 36 | -150 |
| 37 | 400 |
| 38 | 0 |
| 39 | 0 |
| 40 | 112 |
| 41 | -384 |
| 42 | 0 |
| 43 | 0 |
| 44 | 112 |
| 45 | 496 |
| 46 | 0 |
| 47 | 0 |
| 48 | -112 |
| 49 | -674 |
| 50 | 0 |
| 51 | 0 |
| 52 | -80 |
| 53 | 560 |
| 54 | 0 |
| 55 | 0 |
| 56 | 160 |
| 57 | -672 |
| 58 | 0 |
| 59 | 0 |
| 60 | 192 |
| 61 | 880 |
| 62 | 0 |
| 63 | 0 |
| 64 | -294 |
[1,-2,0,0,-6,16,0,0,8,-50,0,0,16,80,0,0,-38,-96,0, 0,-16,160,0,0,48,-242,0,0,64,240,0,0,-56,-288,0,0, -150,400,0,0,112,-384,0,0,112,496,0,0,-112,-674,0, 0,-80,560,0,0,160,-672,0,0,192,880,0,0,-294] |