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