n | a(n) |
---|---|
0 | 1 |
1 | 12 |
2 | 96 |
3 | 640 |
4 | 3840 |
5 | 21504 |
6 | 114688 |
7 | 589824 |
8 | 2949120 |
9 | 14417920 |
10 | 69206016 |
11 | 327155712 |
12 | 1526726656 |
13 | 7046430720 |
14 | 32212254720 |
15 | 146028888064 |
16 | 657129996288 |
17 | 2937757630464 |
18 | 13056700579840 |
19 | 57724360458240 |
20 | 253987186016256 |
[1,12,96,640,3840,21504,114688,589824,2949120, 14417920,69206016,327155712,1526726656,7046430720, 32212254720,146028888064,657129996288, 2937757630464,13056700579840,57724360458240, 253987186016256] |