The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | -1 |
| 1 | 0 |
| 2 | 5 |
| 3 | 90075 |
| 4 | 25657845139503479 |
| 5 | 516742576223066713590751888575037849059948015 |
[-1,0,5,90075,25657845139503479, 516742576223066713590751888575037849059948015] |