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 | 0 |
| 1 | 0 |
| 2 | -1 |
| 3 | 4 |
| 4 | -32 |
| 5 | 326 |
| 6 | -3708 |
| 7 | 45722 |
| 8 | -598088 |
| 9 | 8171400 |
[0,0,-1,4,-32,326,-3708,45722,-598088,8171400] |