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