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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 | 7 |
| 4 | -17 |
| 5 | 23 |
| 6 | -1 |
| 7 | -89 |
| 8 | 271 |
| 9 | -457 |
| 10 | 287 |
| 11 | 967 |
| 12 | -4049 |
| 13 | 8279 |
| 14 | -8641 |
| 15 | -7193 |
| 16 | 56143 |
| 17 | -139657 |
| 18 | 194399 |
| 19 | -24569 |
| 20 | -703889 |
| 21 | 2209943 |
| 22 | -3814273 |
| 23 | 2603047 |
| 24 | 7447951 |
| 25 | -32756041 |
| 26 | 68476319 |
| 27 | -74404793 |
| 28 | -50690897 |
| 29 | 449691863 |
| 30 | -1146312001 |
| 31 | 1640168551 |
| 32 | -335257649 |
| 33 | -5554901257 |
[1,-1,-1,7,-17,23,-1,-89,271,-457,287,967,-4049, 8279,-8641,-7193,56143,-139657,194399,-24569, -703889,2209943,-3814273,2603047,7447951, -32756041,68476319,-74404793,-50690897,449691863, -1146312001,1640168551,-335257649,-5554901257] |