The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 0 |
| 5 | 3 |
| 6 | 1 |
| 7 | 1 |
| 8 | -1 |
| 9 | 1 |
| 10 | 2 |
| 11 | 4 |
| 12 | 0 |
| 13 | 2 |
| 14 | 0 |
| 15 | 2 |
| 16 | -2 |
| 17 | 2 |
| 18 | 0 |
| 19 | 0 |
| 20 | 1 |
| 21 | 0 |
| 22 | 3 |
| 23 | 2 |
| 24 | -1 |
| 25 | 2 |
| 26 | 1 |
| 27 | 0 |
| 28 | -1 |
| 29 | 3 |
| 30 | 1 |
| 31 | 5 |
| 32 | -3 |
| 33 | 3 |
| 34 | 1 |
| 35 | 1 |
| 36 | -1 |
| 37 | 1 |
| 38 | -1 |
| 39 | 1 |
| 40 | 0 |
| 41 | 3 |
| 42 | -1 |
| 43 | 1 |
| 44 | 2 |
| 45 | 1 |
| 46 | 1 |
| 47 | 3 |
| 48 | -2 |
| 49 | -1 |
| 50 | 1 |
| 51 | 1 |
| 52 | 0 |
| 53 | -1 |
| 54 | -1 |
| 55 | 3 |
| 56 | -2 |
| 57 | -1 |
| 58 | 2 |
| 59 | 3 |
| 60 | 0 |
| 61 | 1 |
| 62 | 4 |
| 63 | -1 |
| 64 | -4 |
| 65 | 1 |
| 66 | 2 |
| 67 | 1 |
| 68 | 0 |
| 69 | 1 |
| 70 | 0 |
| 71 | 2 |
| 72 | -2 |
| 73 | 1 |
| 74 | 0 |
| 75 | 1 |
| 76 | -2 |
| 77 | 2 |
| 78 | 0 |
| 79 | 4 |
| 80 | -1 |
[0,1,2,0,3,1,1,-1,1,2,4,0,2,0,2,-2,2,0,0,1,0,3,2, -1,2,1,0,-1,3,1,5,-3,3,1,1,-1,1,-1,1,0,3,-1,1,2,1, 1,3,-2,-1,1,1,0,-1,-1,3,-2,-1,2,3,0,1,4,-1,-4,1,2, 1,0,1,0,2,-2,1,0,1,-2,2,0,4,-1] |