| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 0 |
| 3 | 1 |
| 4 | -1 |
| 5 | 0 |
| 6 | 1 |
| 7 | 0 |
| 8 | -2 |
| 9 | 0 |
| 10 | 1 |
| 11 | 2 |
| 12 | 0 |
| 13 | -4 |
| 14 | 0 |
| 15 | 1 |
| 16 | 0 |
| 17 | 6 |
| 18 | 0 |
| 19 | -6 |
| 20 | 0 |
| 21 | 1 |
| 22 | -6 |
| 23 | 0 |
| 24 | 18 |
| 25 | 0 |
| 26 | -9 |
| 27 | 0 |
| 28 | 1 |
| 29 | 0 |
| 30 | -30 |
| 31 | 0 |
| 32 | 42 |
| 33 | 0 |
| 34 | -13 |
| 35 | 0 |
| 36 | 1 |
| 37 | 30 |
| 38 | 0 |
| 39 | -120 |
| 40 | 0 |
| 41 | 87 |
| 42 | 0 |
| 43 | -18 |
| 44 | 0 |
| 45 | 1 |
| 46 | 0 |
| 47 | 240 |
| 48 | 0 |
| 49 | -414 |
| 50 | 0 |
| 51 | 178 |
| 52 | 0 |
| 53 | -25 |
| 54 | 0 |
| 55 | 1 |
| 56 | -270 |
| 57 | 0 |
| 58 | 1320 |
| 59 | 0 |
| 60 | -1197 |
| 61 | 0 |
| 62 | 340 |
| 63 | 0 |
| 64 | -34 |
| 65 | 0 |
| 66 | 1 |
[1,0,1,-1,0,1,0,-2,0,1,2,0,-4,0,1,0,6,0,-6,0,1,-6, 0,18,0,-9,0,1,0,-30,0,42,0,-13,0,1,30,0,-120,0,87, 0,-18,0,1,0,240,0,-414,0,178,0,-25,0,1,-270,0, 1320,0,-1197,0,340,0,-34,0,1] |