The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 0 |
| 3 | 0 |
| 4 | -1 |
| 5 | 0 |
| 6 | -1 |
| 7 | -2 |
| 8 | 0 |
| 9 | 1 |
| 10 | 1 |
| 11 | -2 |
| 12 | 2 |
| 13 | 0 |
| 14 | 2 |
| 15 | -1 |
| 16 | 3 |
| 17 | 4 |
| 18 | 0 |
| 19 | 0 |
| 20 | -2 |
| 21 | -2 |
| 22 | -2 |
| 23 | 0 |
| 24 | -1 |
| 25 | 1 |
| 26 | -2 |
| 27 | 0 |
| 28 | -2 |
| 29 | -4 |
| 30 | 0 |
| 31 | 4 |
| 32 | -4 |
| 33 | 2 |
| 34 | -2 |
| 35 | 2 |
| 36 | -1 |
| 37 | -4 |
| 38 | 4 |
| 39 | 2 |
| 40 | 1 |
| 41 | 2 |
| 42 | 2 |
| 43 | 0 |
| 44 | 6 |
| 45 | 0 |
| 46 | 0 |
| 47 | 4 |
| 48 | -2 |
| 49 | 1 |
| 50 | 0 |
| 51 | 2 |
| 52 | 4 |
| 53 | -8 |
| 54 | -1 |
| 55 | -2 |
| 56 | 2 |
| 57 | -4 |
| 58 | 2 |
| 59 | -2 |
| 60 | 1 |
| 61 | -6 |
| 62 | -4 |
| 63 | -2 |
| 64 | -1 |
| 65 | -2 |
| 66 | 2 |
| 67 | 4 |
| 68 | 0 |
| 69 | 0 |
| 70 | -2 |
| 71 | -4 |
| 72 | 0 |
| 73 | 6 |
| 74 | -6 |
| 75 | 0 |
| 76 | -8 |
| 77 | 0 |
| 78 | 0 |
| 79 | 4 |
[0,1,0,0,-1,0,-1,-2,0,1,1,-2,2,0,2,-1,3,4,0,0,-2, -2,-2,0,-1,1,-2,0,-2,-4,0,4,-4,2,-2,2,-1,-4,4,2,1, 2,2,0,6,0,0,4,-2,1,0,2,4,-8,-1,-2,2,-4,2,-2,1,-6, -4,-2,-1,-2,2,4,0,0,-2,-4,0,6,-6,0,-8,0,0,4] |