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 | -2 |
| 2 | 28 |
| 3 | -520 |
| 4 | 59728 |
| 5 | -3842720 |
| 6 | 963273920 |
| 7 | -151564390016 |
| 8 | 60786495498496 |
| 9 | -18563464667034112 |
| 10 | 10709479914780654592 |
| 11 | -5442000735745663911936 |
| 12 | 4284121800522638439469056 |
| 13 | -3262273090906052050909765632 |
[1,-2,28,-520,59728,-3842720,963273920, -151564390016,60786495498496,-18563464667034112, 10709479914780654592,-5442000735745663911936, 4284121800522638439469056, -3262273090906052050909765632] |