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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 12 |
| 2 | 2448 |
| 3 | 2900160 |
| 4 | 3335369728 |
| 5 | 16355507060736 |
| 6 | 202873109257748480 |
| 7 | 5520786912662854893568 |
| 8 | 304515605038514679874846720 |
| 9 | 31568014831906551177163996921856 |
| 10 | 5785425274398818300907155436515360768 |
| 11 | 1783302045417843100606023721285336961122304 |
| 12 | 886715046570481808433485979311322483302619676672 |
[1,12,2448,2900160,3335369728,16355507060736, 202873109257748480,5520786912662854893568, 304515605038514679874846720, 31568014831906551177163996921856, 5785425274398818300907155436515360768, 1783302045417843100606023721285336961122304, 886715046570481808433485979311322483302619676672] |