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| n | a(n) |
|---|---|
| 1 | 768 |
| 2 | 4954521600 |
| 3 | 20251509535014912000 |
| 4 | 88526812916367202104587059200000 |
| 5 | 3776127947893930552689423154306445475840000000 |
| 6 | 92624181047745713568610317051197596401168530978226831360000000 |
| 7 | 886156947284057553944669848348035536068124589065755283423684984832000000000000 |
[768,4954521600,20251509535014912000, 88526812916367202104587059200000, 3776127947893930552689423154306445475840000000, 92624181047745713568610317051197596401168530978226\ 831360000000, 88615694728405755394466984834803553606812458906575\ 5283423684984832000000000000] |