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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 188976 |
| 5 | 0 |
| 6 | 148157184 |
| 7 | 5805342720 |
| 8 | 352501184760 |
| 9 | 14090340827136 |
| 10 | 445990551166720 |
| 11 | 11148730324353024 |
| 12 | 224814298345622160 |
| 13 | 3704888469231108096 |
| 14 | 50486579825291883008 |
| 15 | 574502111223143792640 |
| 16 | 5505259862572668584988 |
[1,0,0,0,188976,0,148157184,5805342720, 352501184760,14090340827136,445990551166720, 11148730324353024,224814298345622160, 3704888469231108096,50486579825291883008, 574502111223143792640,5505259862572668584988] |