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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 8 |
| 3 | 0 |
| 4 | 768 |
| 5 | 0 |
| 6 | 0 |
| 7 | 0 |
| 8 | 4954521600 |
| 9 | 0 |
| 10 | 0 |
| 11 | 0 |
| 12 | 20251509535014912000 |
| 13 | 0 |
| 14 | 0 |
| 15 | 0 |
| 16 | 88526812916367202104587059200000 |
| 17 | 0 |
| 18 | 0 |
| 19 | 0 |
| 20 | 3776127947893930552689423154306445475840000000 |
| 21 | 0 |
| 22 | 0 |
| 23 | 0 |
| 24 | 92624181047745713568610317051197596401168530978226831360000000 |
| 25 | 0 |
| 26 | 0 |
| 27 | 0 |
| 28 | 886156947284057553944669848348035536068124589065755283423684984832000000000000 |
| 29 | 0 |
| 30 | 0 |
| 31 | 0 |
[2,8,0,768,0,0,0,4954521600,0,0,0, 20251509535014912000,0,0,0, 88526812916367202104587059200000,0,0,0, 3776127947893930552689423154306445475840000000,0, 0,0, 92624181047745713568610317051197596401168530978226\ 831360000000,0,0,0, 88615694728405755394466984834803553606812458906575\ 5283423684984832000000000000,0,0,0] |