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| n | a(n) |
|---|---|
| 2 | 1 |
| 3 | 3 |
| 4 | 0 |
| 5 | 125 |
| 6 | -1215 |
| 7 | 0 |
| 8 | 0 |
| 9 | 9126441 |
| 10 | 0 |
| 11 | -187590821 |
| 12 | 0 |
| 13 | 0 |
| 14 | 20686753425 |
| 15 | 0 |
| 16 | 0 |
| 17 | 0 |
| 18 | 9224101117395305225 |
| 19 | 0 |
| 20 | 881852208012283730302080 |
| 21 | 624391710361368134976 |
| 22 | 0 |
| 23 | -3428714319207136609529065 |
| 24 | 0 |
| 25 | 0 |
| 26 | 3878246452353765171209988566241 |
| 27 | 0 |
| 28 | 0 |
| 29 | 4308304210666498856284267223158421 |
[1,3,0,125,-1215,0,0,9126441,0,-187590821,0,0, 20686753425,0,0,0,9224101117395305225,0, 881852208012283730302080,624391710361368134976,0, -3428714319207136609529065,0,0, 3878246452353765171209988566241,0,0, 4308304210666498856284267223158421] |