n | a(n) |
---|---|
0 | 1 |
1 | 12 |
2 | 240 |
3 | 4032 |
4 | 34560 |
5 | 101376 |
6 | 50319360 |
7 | 6635520 |
8 | 451215360 |
9 | 42361159680 |
10 | 1471492915200 |
11 | 1758147379200 |
12 | 417368899584000 |
13 | 15410543984640 |
14 | 141874849382400 |
15 | 28026642660065280 |
16 | 922166952040857600 |
17 | 19725496300339200 |
18 | 2163255728265599385600 |
19 | 36926129074234982400 |
[1,12,240,4032,34560,101376,50319360,6635520, 451215360,42361159680,1471492915200,1758147379200, 417368899584000,15410543984640,141874849382400, 28026642660065280,922166952040857600, 19725496300339200,2163255728265599385600, 36926129074234982400] |