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 | 2 |
| 3 | 0 |
| 4 | -4 |
| 5 | 8 |
| 6 | 0 |
| 7 | 0 |
| 8 | 8 |
| 9 | 0 |
| 10 | 16 |
| 11 | 0 |
| 12 | 0 |
| 13 | -10 |
| 14 | 0 |
| 15 | 0 |
| 16 | -16 |
| 17 | -16 |
| 18 | 0 |
| 19 | 0 |
| 20 | -32 |
| 21 | 0 |
| 22 | 0 |
| 23 | 0 |
| 24 | 0 |
| 25 | 39 |
| 26 | -20 |
| 27 | 0 |
| 28 | 0 |
| 29 | -40 |
| 30 | 0 |
| 31 | 0 |
| 32 | 32 |
| 33 | 0 |
| 34 | -32 |
| 35 | 0 |
| 36 | 0 |
| 37 | -70 |
| 38 | 0 |
| 39 | 0 |
| 40 | 64 |
| 41 | 80 |
| 42 | 0 |
| 43 | 0 |
| 44 | 0 |
| 45 | 0 |
| 46 | 0 |
| 47 | 0 |
| 48 | 0 |
| 49 | 49 |
| 50 | 78 |
| 51 | 0 |
| 52 | 40 |
| 53 | 56 |
| 54 | 0 |
| 55 | 0 |
| 56 | 0 |
| 57 | 0 |
| 58 | -80 |
| 59 | 0 |
| 60 | 0 |
| 61 | -22 |
| 62 | 0 |
| 63 | 0 |
| 64 | -64 |
| 65 | -80 |
| 66 | 0 |
| 67 | 0 |
| 68 | 64 |
| 69 | 0 |
| 70 | 0 |
| 71 | 0 |
| 72 | 0 |
| 73 | 110 |
[1,2,0,-4,8,0,0,8,0,16,0,0,-10,0,0,-16,-16,0,0, -32,0,0,0,0,39,-20,0,0,-40,0,0,32,0,-32,0,0,-70,0, 0,64,80,0,0,0,0,0,0,0,49,78,0,40,56,0,0,0,0,-80,0, 0,-22,0,0,-64,-80,0,0,64,0,0,0,0,110] |