The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | -1 |
| 2 | -1 |
| 3 | 1 |
| 4 | -1 |
| 5 | -1 |
| 6 | -1 |
| 7 | -1 |
| 8 | 1 |
| 9 | 2 |
| 10 | 2 |
| 11 | -1 |
| 12 | -2 |
| 13 | -1 |
| 14 | -1 |
| 15 | 1 |
| 16 | 0 |
| 17 | 1 |
| 18 | 5 |
| 19 | 4 |
| 20 | -1 |
| 21 | -3 |
| 22 | -1 |
| 23 | -1 |
| 24 | 1 |
| 25 | -3 |
| 26 | -5 |
| 27 | -2 |
| 28 | 3 |
| 29 | 9 |
| 30 | 6 |
| 31 | -1 |
| 32 | -4 |
| 33 | -1 |
| 34 | -1 |
| 35 | 1 |
| 36 | 2 |
| 37 | 1 |
| 38 | -10 |
| 39 | -16 |
| 40 | -6 |
| 41 | 6 |
| 42 | 14 |
| 43 | 8 |
| 44 | -1 |
| 45 | -5 |
| 46 | -1 |
| 47 | -1 |
| 48 | 1 |
| 49 | 3 |
| 50 | 9 |
| 51 | 14 |
| 52 | 4 |
| 53 | -23 |
| 54 | -34 |
| 55 | -12 |
| 56 | 10 |
| 57 | 20 |
| 58 | 10 |
| 59 | -1 |
| 60 | -6 |
| 61 | -1 |
| 62 | -1 |
| 63 | 1 |
| 64 | -5 |
| 65 | -8 |
| 66 | 10 |
| 67 | 38 |
| 68 | 45 |
| 69 | 10 |
| 70 | -44 |
| 71 | -60 |
| 72 | -20 |
| 73 | 15 |
| 74 | 27 |
| 75 | 12 |
| 76 | -1 |
| 77 | -7 |
| 78 | -1 |
| 79 | -1 |
| 80 | 1 |
| 81 | -1 |
| 82 | -11 |
| 83 | -38 |
| 84 | -42 |
| 85 | 23 |
| 86 | 101 |
| 87 | 105 |
| 88 | 20 |
[1,-1,-1,1,-1,-1,-1,-1,1,2,2,-1,-2,-1,-1,1,0,1,5, 4,-1,-3,-1,-1,1,-3,-5,-2,3,9,6,-1,-4,-1,-1,1,2,1, -10,-16,-6,6,14,8,-1,-5,-1,-1,1,3,9,14,4,-23,-34, -12,10,20,10,-1,-6,-1,-1,1,-5,-8,10,38,45,10,-44, -60,-20,15,27,12,-1,-7,-1,-1,1,-1,-11,-38,-42,23, 101,105,20] |