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| n | a(n) |
|---|---|
| 1 | 5 |
| 2 | 87 |
| 3 | 4140 |
| 4 | 433252 |
| 5 | 99827160 |
| 6 | 33093252880 |
| 7 | 18383343930862 |
| 8 | 12954733079950228 |
| 9 | 13465808371086175084 |
| 10 | 16679505315419165886800 |
[5,87,4140,433252,99827160,33093252880, 18383343930862,12954733079950228, 13465808371086175084,16679505315419165886800] |