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) |
|---|---|
| 1 | 0 |
| 2 | -1 |
| 3 | -1 |
| 4 | -2 |
| 5 | 0 |
| 6 | -1 |
| 7 | -1 |
| 8 | -2 |
| 9 | 2 |
| 10 | 1 |
| 11 | 1 |
| 12 | 0 |
| 13 | 2 |
| 14 | 1 |
| 15 | 1 |
| 16 | 0 |
| 17 | 4 |
| 18 | 3 |
| 19 | 3 |
| 20 | 2 |
| 21 | 4 |
| 22 | 3 |
| 23 | 3 |
| 24 | 2 |
| 25 | 6 |
| 26 | 5 |
| 27 | 5 |
| 28 | 4 |
| 29 | 6 |
| 30 | 5 |
| 31 | 5 |
| 32 | 4 |
| 33 | 4 |
| 34 | 3 |
| 35 | 3 |
| 36 | 2 |
| 37 | 4 |
| 38 | 3 |
| 39 | 3 |
| 40 | 2 |
| 41 | 6 |
| 42 | 5 |
| 43 | 5 |
| 44 | 4 |
| 45 | 6 |
| 46 | 5 |
| 47 | 5 |
| 48 | 4 |
| 49 | 8 |
| 50 | 7 |
| 51 | 7 |
| 52 | 6 |
| 53 | 8 |
| 54 | 7 |
| 55 | 7 |
| 56 | 6 |
| 57 | 10 |
| 58 | 9 |
| 59 | 9 |
| 60 | 8 |
| 61 | 10 |
| 62 | 9 |
| 63 | 9 |
| 64 | 8 |
| 65 | 0 |
| 66 | -1 |
| 67 | -1 |
| 68 | -2 |
| 69 | 0 |
| 70 | -1 |
| 71 | -1 |
| 72 | -2 |
| 73 | 2 |
| 74 | 1 |
| 75 | 1 |
| 76 | 0 |
| 77 | 2 |
| 78 | 1 |
| 79 | 1 |
| 80 | 0 |
| 81 | 4 |
| 82 | 3 |
[0,-1,-1,-2,0,-1,-1,-2,2,1,1,0,2,1,1,0,4,3,3,2,4, 3,3,2,6,5,5,4,6,5,5,4,4,3,3,2,4,3,3,2,6,5,5,4,6,5, 5,4,8,7,7,6,8,7,7,6,10,9,9,8,10,9,9,8,0,-1,-1,-2, 0,-1,-1,-2,2,1,1,0,2,1,1,0,4,3] |