The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | -1 |
| 3 | 1 |
| 4 | 0 |
| 5 | -2 |
| 6 | 1 |
| 7 | 0 |
| 8 | 1 |
| 9 | -3 |
| 10 | 1 |
| 11 | -1 |
| 12 | 0 |
| 13 | 3 |
| 14 | -4 |
| 15 | 1 |
| 16 | 0 |
| 17 | -2 |
| 18 | -1 |
| 19 | 6 |
| 20 | -5 |
| 21 | 1 |
| 22 | -1 |
| 23 | 2 |
| 24 | -3 |
| 25 | -4 |
| 26 | 10 |
| 27 | -6 |
| 28 | 1 |
| 29 | 0 |
| 30 | -2 |
| 31 | 6 |
| 32 | -3 |
| 33 | -10 |
| 34 | 15 |
| 35 | -7 |
| 36 | 1 |
| 37 | 0 |
| 38 | 2 |
| 39 | -6 |
| 40 | 12 |
| 41 | 0 |
| 42 | -20 |
| 43 | 21 |
| 44 | -8 |
| 45 | 1 |
| 46 | 0 |
| 47 | 1 |
| 48 | 6 |
| 49 | -16 |
| 50 | 19 |
| 51 | 9 |
| 52 | -35 |
| 53 | 28 |
| 54 | -9 |
| 55 | 1 |
| 56 | 0 |
| 57 | 0 |
| 58 | 0 |
| 59 | 16 |
| 60 | -35 |
| 61 | 24 |
| 62 | 28 |
| 63 | -56 |
| 64 | 36 |
| 65 | -10 |
| 66 | 1 |
| 67 | -1 |
| 68 | 2 |
| 69 | -3 |
| 70 | -6 |
| 71 | 40 |
| 72 | -65 |
| 73 | 21 |
| 74 | 62 |
| 75 | -84 |
| 76 | 45 |
| 77 | -11 |
| 78 | 1 |
[1,-1,1,0,-2,1,0,1,-3,1,-1,0,3,-4,1,0,-2,-1,6,-5, 1,-1,2,-3,-4,10,-6,1,0,-2,6,-3,-10,15,-7,1,0,2,-6, 12,0,-20,21,-8,1,0,1,6,-16,19,9,-35,28,-9,1,0,0,0, 16,-35,24,28,-56,36,-10,1,-1,2,-3,-6,40,-65,21,62, -84,45,-11,1] |