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