The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 5 |
| 2 | 5 |
| 3 | 1105 |
| 4 | 565 |
| 5 | 82825 |
| 6 | 19675 |
| 7 | 1282031525 |
| 8 | 80727925 |
| 9 | 1683480621875 |
| 10 | 13209845125 |
| 11 | 2239646759308375 |
| 12 | 19739117098375 |
| 13 | 6320791709083309375 |
| 14 | 32468078556378125 |
| 15 | 38362676768845045751875 |
| 16 | 281365778405032973125 |
| 17 | 2824650747089425586152484375 |
| 18 | 776632157034116712734375 |
[1,5,5,1105,565,82825,19675,1282031525,80727925, 1683480621875,13209845125,2239646759308375, 19739117098375,6320791709083309375, 32468078556378125,38362676768845045751875, 281365778405032973125, 2824650747089425586152484375, 776632157034116712734375] |