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 | 1 |
| 4 | -1 |
| 5 | 1 |
| 6 | 1 |
| 7 | -1 |
| 8 | -1 |
| 9 | 1 |
| 10 | 1 |
| 11 | -10 |
| 12 | 17 |
| 13 | -10 |
| 14 | 1 |
| 15 | 1 |
| 16 | 10 |
| 17 | -12 |
| 18 | -12 |
| 19 | 10 |
| 20 | 1 |
| 21 | 1 |
| 22 | -115 |
| 23 | 308 |
| 24 | -391 |
| 25 | 308 |
| 26 | -115 |
| 27 | 1 |
| 28 | 1 |
| 29 | 599 |
| 30 | -1371 |
| 31 | 769 |
| 32 | 769 |
| 33 | -1371 |
| 34 | 599 |
| 35 | 1 |
| 36 | 1 |
| 37 | -4448 |
| 38 | 11838 |
| 39 | -13503 |
| 40 | 12219 |
| 41 | -13503 |
| 42 | 11838 |
| 43 | -4448 |
| 44 | 1 |
| 45 | 1 |
| 46 | 35864 |
| 47 | -97529 |
| 48 | 102186 |
| 49 | -40525 |
| 50 | -40525 |
| 51 | 102186 |
[1,1,1,1,-1,1,1,-1,-1,1,1,-10,17,-10,1,1,10,-12, -12,10,1,1,-115,308,-391,308,-115,1,1,599,-1371, 769,769,-1371,599,1,1,-4448,11838,-13503,12219, -13503,11838,-4448,1,1,35864,-97529,102186,-40525, -40525,102186] |