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