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) |
|---|---|
| 0 | 1 |
| 1 | -1 |
| 2 | 1 |
| 3 | 0 |
| 4 | 1 |
| 5 | 1 |
| 6 | 3 |
| 7 | 3 |
| 8 | 3 |
| 9 | 10 |
| 10 | 11 |
| 11 | 21 |
| 12 | 32 |
| 13 | 52 |
| 14 | 77 |
| 15 | 128 |
| 16 | 206 |
| 17 | 320 |
| 18 | 517 |
| 19 | 817 |
| 20 | 1297 |
| 21 | 2060 |
| 22 | 3290 |
| 23 | 5220 |
| 24 | 8298 |
| 25 | 13205 |
| 26 | 20980 |
| 27 | 33360 |
| 28 | 53056 |
| 29 | 84366 |
| 30 | 134114 |
| 31 | 213263 |
| 32 | 339086 |
| 33 | 539123 |
| 34 | 857240 |
| 35 | 1363034 |
| 36 | 2167197 |
| 37 | 3445840 |
| 38 | 5478951 |
| 39 | 8711511 |
| 40 | 13851359 |
[1,-1,1,0,1,1,3,3,3,10,11,21,32,52,77,128,206,320, 517,817,1297,2060,3290,5220,8298,13205,20980, 33360,53056,84366,134114,213263,339086,539123, 857240,1363034,2167197,3445840,5478951,8711511, 13851359] |