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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 24 |
| 3 | 1053 |
| 4 | 91136 |
| 5 | 12671875 |
| 6 | 2696063616 |
| 7 | 809983364505 |
| 8 | 327495685505024 |
| 9 | 171227271945676302 |
| 10 | 112357985100000000000 |
| 11 | 90363823728354065308166 |
| 12 | 87385452532420018496864256 |
| 13 | 100018623822234988019520698561 |
| 14 | 133709300217761726319712591577088 |
[1,1,24,1053,91136,12671875,2696063616, 809983364505,327495685505024,171227271945676302, 112357985100000000000,90363823728354065308166, 87385452532420018496864256, 100018623822234988019520698561, 133709300217761726319712591577088] |