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