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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 0 |
| 7 | 0 |
| 8 | 20990607300 |
| 9 | 4031426457600 |
| 10 | 461953129453056 |
| 11 | 33678482285260800 |
| 12 | 1689777019197288000 |
| 13 | 61961776102200729600 |
| 14 | 1739541798786402086400 |
| 15 | 38795368719316465631232 |
| 16 | 708063881901057288830700 |
[1,0,0,0,0,0,0,0,20990607300,4031426457600, 461953129453056,33678482285260800, 1689777019197288000,61961776102200729600, 1739541798786402086400,38795368719316465631232, 708063881901057288830700] |