The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 1 |
| 3 | -1 |
| 4 | 1 |
| 5 | -1 |
| 6 | -1 |
| 7 | 7 |
| 8 | 1 |
| 9 | -21 |
| 10 | -1 |
| 11 | 49 |
| 12 | -1 |
| 13 | -91 |
| 14 | 7 |
| 15 | 0 |
| 16 | 1 |
| 17 | -2 |
| 18 | -21 |
| 19 | 6 |
| 20 | -1 |
| 21 | -14 |
| 22 | 49 |
| 23 | 28 |
| 24 | -1 |
| 25 | -42 |
| 26 | -91 |
| 27 | 28 |
| 28 | 7 |
| 29 | -2 |
| 30 | 0 |
| 31 | 4 |
| 32 | 1 |
| 33 | -8 |
| 34 | -2 |
| 35 | 14 |
| 36 | -21 |
| 37 | -14 |
| 38 | 6 |
| 39 | -14 |
| 40 | -1 |
| 41 | 90 |
| 42 | -14 |
| 43 | 2 |
| 44 | 49 |
| 45 | -4 |
| 46 | 28 |
| 47 | 6 |
| 48 | -1 |
| 49 | 0 |
| 50 | -42 |
| 51 | -28 |
| 52 | -91 |
| 53 | 76 |
| 54 | 28 |
| 55 | -84 |
| 56 | 7 |
| 57 | -2 |
| 58 | -2 |
| 59 | 2 |
| 60 | 0 |
| 61 | 6 |
| 62 | 4 |
| 63 | -28 |
| 64 | 1 |
| 65 | 48 |
| 66 | -8 |
[0,1,1,-1,1,-1,-1,7,1,-21,-1,49,-1,-91,7,0,1,-2, -21,6,-1,-14,49,28,-1,-42,-91,28,7,-2,0,4,1,-8,-2, 14,-21,-14,6,-14,-1,90,-14,2,49,-4,28,6,-1,0,-42, -28,-91,76,28,-84,7,-2,-2,2,0,6,4,-28,1,48,-8] |