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 | 0 |
| 1 | 1 |
| 2 | -1 |
| 3 | 1 |
| 4 | 0 |
| 5 | 2 |
| 6 | -1 |
| 7 | 0 |
| 8 | -2 |
| 9 | 1 |
| 10 | 1 |
| 11 | 1 |
| 12 | 0 |
| 13 | 2 |
| 14 | -2 |
| 15 | 2 |
| 16 | 1 |
| 17 | 3 |
| 18 | -1 |
| 19 | -1 |
| 20 | -1 |
| 21 | 0 |
| 22 | -2 |
| 23 | 2 |
| 24 | -2 |
| 25 | -1 |
| 26 | -3 |
| 27 | 1 |
| 28 | 2 |
| 29 | 0 |
| 30 | 1 |
| 31 | 2 |
| 32 | 0 |
| 33 | 1 |
| 34 | 1 |
| 35 | 1 |
| 36 | 0 |
| 37 | 2 |
| 38 | -2 |
| 39 | 2 |
| 40 | 0 |
| 41 | 4 |
| 42 | -2 |
| 43 | 0 |
| 44 | -4 |
| 45 | 2 |
| 46 | 3 |
| 47 | 1 |
| 48 | 1 |
| 49 | 4 |
| 50 | -2 |
| 51 | 3 |
| 52 | 2 |
| 53 | 4 |
| 54 | -1 |
| 55 | -2 |
| 56 | 0 |
| 57 | -1 |
| 58 | -2 |
| 59 | 0 |
| 60 | -1 |
| 61 | -1 |
| 62 | -1 |
| 63 | 0 |
| 64 | -2 |
| 65 | 2 |
| 66 | -2 |
| 67 | 0 |
| 68 | -4 |
| 69 | 2 |
| 70 | 0 |
| 71 | 4 |
| 72 | -2 |
| 73 | -3 |
| 74 | -1 |
| 75 | -1 |
| 76 | -4 |
| 77 | 2 |
| 78 | -3 |
| 79 | -2 |
| 80 | -4 |
| 81 | 1 |
[0,1,-1,1,0,2,-1,0,-2,1,1,1,0,2,-2,2,1,3,-1,-1,-1, 0,-2,2,-2,-1,-3,1,2,0,1,2,0,1,1,1,0,2,-2,2,0,4,-2, 0,-4,2,3,1,1,4,-2,3,2,4,-1,-2,0,-1,-2,0,-1,-1,-1, 0,-2,2,-2,0,-4,2,0,4,-2,-3,-1,-1,-4,2,-3,-2,-4,1] |