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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 32 |
| 3 | 1422 |
| 4 | 124832 |
| 5 | 18246850 |
| 6 | 4005713952 |
| 7 | 1232956594814 |
| 8 | 506672220394496 |
| 9 | 267992015325604578 |
| 10 | 177340024595660672000 |
| 11 | 143531889358151618790862 |
| 12 | 139482579412432078779322368 |
| 13 | 160267575964062522718064075618 |
| 14 | 214924620455826226723051817295872 |
[1,2,32,1422,124832,18246850,4005713952, 1232956594814,506672220394496,267992015325604578, 177340024595660672000,143531889358151618790862, 139482579412432078779322368, 160267575964062522718064075618, 214924620455826226723051817295872] |