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 | 1 |
| 2 | 1 |
| 3 | -1 |
| 4 | 0 |
| 5 | -2 |
| 6 | 1 |
| 7 | -1 |
| 8 | -1 |
| 9 | 3 |
| 10 | -1 |
| 11 | -1 |
| 12 | 1 |
| 13 | 3 |
| 14 | -4 |
| 15 | 1 |
| 16 | -2 |
| 17 | 5 |
| 18 | -1 |
| 19 | -6 |
| 20 | 5 |
| 21 | -1 |
| 22 | -1 |
| 23 | 5 |
| 24 | -6 |
| 25 | -3 |
| 26 | 10 |
| 27 | -6 |
| 28 | 1 |
| 29 | -2 |
| 30 | 11 |
| 31 | -21 |
| 32 | 13 |
| 33 | 8 |
| 34 | -15 |
| 35 | 7 |
| 36 | -1 |
| 37 | -2 |
| 38 | 13 |
| 39 | -33 |
| 40 | 38 |
| 41 | -11 |
| 42 | -19 |
| 43 | 21 |
| 44 | -8 |
| 45 | 1 |
| 46 | -2 |
| 47 | 16 |
| 48 | -52 |
| 49 | 86 |
| 50 | -69 |
| 51 | 7 |
| 52 | 34 |
| 53 | -28 |
| 54 | 9 |
| 55 | -1 |
| 56 | -1 |
| 57 | 12 |
| 58 | -54 |
| 59 | 124 |
| 60 | -155 |
| 61 | 90 |
| 62 | 13 |
| 63 | -56 |
| 64 | 36 |
| 65 | -10 |
| 66 | 1 |
[1,1,-1,0,-2,1,-1,-1,3,-1,-1,1,3,-4,1,-2,5,-1,-6, 5,-1,-1,5,-6,-3,10,-6,1,-2,11,-21,13,8,-15,7,-1, -2,13,-33,38,-11,-19,21,-8,1,-2,16,-52,86,-69,7, 34,-28,9,-1,-1,12,-54,124,-155,90,13,-56,36,-10,1] |