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