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 | 4 |
| 2 | -4 |
| 3 | 88 |
| 4 | -3676 |
| 5 | 13696 |
| 6 | -2247872 |
| 7 | 100066432 |
| 8 | -9981213728 |
| 9 | 350407116928 |
| 10 | -99799662414208 |
| 11 | 62373546298624 |
| 12 | -162297422840897152 |
| 13 | 12327981472543499264 |
| 14 | -3665733855982431355904 |
| 15 | 2212317607288301232207872 |
| 16 | -484886817568995013610878976 |
[1,4,-4,88,-3676,13696,-2247872,100066432, -9981213728,350407116928,-99799662414208, 62373546298624,-162297422840897152, 12327981472543499264,-3665733855982431355904, 2212317607288301232207872, -484886817568995013610878976] |