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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 12 |
| 2 | 528 |
| 3 | 38592 |
| 4 | 3946752 |
| 5 | 518851584 |
| 6 | 83360157696 |
| 7 | 15827198459904 |
| 8 | 3467249996857344 |
| 9 | 860827148297699328 |
| 10 | 238861402708405911552 |
| 11 | 73255088750464774176768 |
| 12 | 24605674832759490449768448 |
| 13 | 8983441535013188701054304256 |
| 14 | 3542193354279330060589370179584 |
[1,12,528,38592,3946752,518851584,83360157696, 15827198459904,3467249996857344, 860827148297699328,238861402708405911552, 73255088750464774176768, 24605674832759490449768448, 8983441535013188701054304256, 3542193354279330060589370179584] |