The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | -1 |
| 2 | 2 |
| 3 | -1 |
| 4 | 0 |
| 5 | 1 |
| 6 | 0 |
| 7 | -2 |
| 8 | 0 |
| 9 | 3 |
| 10 | -1 |
| 11 | 0 |
| 12 | 0 |
| 13 | 0 |
| 14 | 1 |
| 15 | 1 |
| 16 | -2 |
| 17 | -1 |
| 18 | 0 |
| 19 | 0 |
| 20 | 2 |
| 21 | -1 |
| 22 | 0 |
| 23 | 0 |
| 24 | 0 |
| 25 | 0 |
| 26 | 0 |
| 27 | 2 |
| 28 | 0 |
| 29 | 0 |
| 30 | 0 |
| 31 | -3 |
| 32 | 0 |
| 33 | 0 |
| 34 | 0 |
| 35 | 4 |
| 36 | 0 |
| 37 | 0 |
| 38 | -1 |
| 39 | 0 |
| 40 | 0 |
| 41 | 0 |
| 42 | 0 |
| 43 | 0 |
| 44 | 1 |
| 45 | 1 |
| 46 | -2 |
| 47 | 0 |
| 48 | 0 |
| 49 | -1 |
| 50 | 0 |
| 51 | 0 |
| 52 | 0 |
| 53 | 0 |
| 54 | 2 |
[1,-1,2,-1,0,1,0,-2,0,3,-1,0,0,0,1,1,-2,-1,0,0,2, -1,0,0,0,0,0,2,0,0,0,-3,0,0,0,4,0,0,-1,0,0,0,0,0, 1,1,-2,0,0,-1,0,0,0,0,2] |