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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 192 |
| 2 | 18432 |
| 3 | 1179712 |
| 4 | 56635392 |
| 5 | 2175506880 |
| 6 | 69653977088 |
| 7 | 1912063019328 |
| 8 | 45941752946688 |
| 9 | 981577889655488 |
| 10 | 18883048883742720 |
| 11 | 330398144244136512 |
| 12 | 5302106181975969792 |
| 13 | 78587597425082438592 |
| 14 | 1082317427128538560512 |
[1,192,18432,1179712,56635392,2175506880, 69653977088,1912063019328,45941752946688, 981577889655488,18883048883742720, 330398144244136512,5302106181975969792, 78587597425082438592,1082317427128538560512] |