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| n | a(n) |
|---|---|
| 4 | 317206375 |
| 5 | 6255156277440 |
| 6 | 30528671745480104 |
| 7 | 222548537108926490 |
| 8 | 154090254047541417984 |
| 9 | 2000750410187341381632 |
| 10 | 12197109744970010814464 |
| 11 | 897560654227562339370036 |
| 12 | 17873898563070361396216980 |
| 13 | 33815935806268253433549768 |
| 14 | 174633921378662035929052320 |
| 15 | 957208127608222375829677128 |
[317206375,6255156277440,30528671745480104, 222548537108926490,154090254047541417984, 2000750410187341381632,12197109744970010814464, 897560654227562339370036, 17873898563070361396216980, 33815935806268253433549768, 174633921378662035929052320, 957208127608222375829677128] |