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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 12 |
| 2 | 288 |
| 3 | 51840 |
| 4 | 2488320 |
| 5 | 209018880 |
| 6 | 75246796800 |
| 7 | 902961561600 |
| 8 | 86684309913600 |
| 9 | 514904800886784000 |
| 10 | 86504006548979712000 |
| 11 | 13494625021640835072000 |
| 12 | 9716130015581401251840000 |
| 13 | 116593560186976815022080000 |
| 14 | 2798245444487443560529920000 |
| 15 | 299692087104605205332754432000000 |
| 16 | 57540880724084199423888850944000000 |
[1,12,288,51840,2488320,209018880,75246796800, 902961561600,86684309913600,514904800886784000, 86504006548979712000,13494625021640835072000, 9716130015581401251840000, 116593560186976815022080000, 2798245444487443560529920000, 299692087104605205332754432000000, 57540880724084199423888850944000000] |