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