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 | 119 |
| 16 | 1 |
| 17 | 0 |
| 18 | -21 |
| 19 | -2 |
| 20 | -1 |
| 21 | 6 |
| 22 | 49 |
| 23 | -14 |
| 24 | -1 |
| 25 | 28 |
| 26 | -91 |
| 27 | -42 |
| 28 | 7 |
| 29 | 28 |
| 30 | 119 |
| 31 | 62 |
| 32 | 1 |
| 33 | -2 |
| 34 | 0 |
| 35 | 4 |
| 36 | -21 |
| 37 | -8 |
| 38 | -2 |
| 39 | 14 |
| 40 | -1 |
| 41 | -14 |
| 42 | 6 |
| 43 | -14 |
| 44 | 49 |
| 45 | 90 |
| 46 | -14 |
| 47 | -174 |
| 48 | -1 |
| 49 | 2 |
| 50 | 28 |
| 51 | -4 |
| 52 | -91 |
| 53 | 6 |
| 54 | -42 |
| 55 | 0 |
| 56 | 7 |
| 57 | -28 |
| 58 | 28 |
| 59 | 76 |
| 60 | 119 |
| 61 | -84 |
| 62 | 62 |
| 63 | -78 |
| 64 | 1 |
[0,1,1,-1,1,-1,-1,7,1,-21,-1,49,-1,-91,7,119,1,0, -21,-2,-1,6,49,-14,-1,28,-91,-42,7,28,119,62,1,-2, 0,4,-21,-8,-2,14,-1,-14,6,-14,49,90,-14,-174,-1,2, 28,-4,-91,6,-42,0,7,-28,28,76,119,-84,62,-78,1] |