n | a(n) |
---|---|
2 | 8 |
3 | 72 |
4 | 2160 |
5 | 15504 |
6 | 220248 |
7 | 1564920 |
8 | 89324640 |
9 | 640807200 |
10 | 9246847896 |
11 | 67087213336 |
12 | 1957095947664 |
13 | 14342471475696 |
14 | 211153052281080 |
15 | 1560676296310488 |
16 | 185256494416099008 |
17 | 1379131680653181504 |
18 | 20598677144877854232 |
[8,72,2160,15504,220248,1564920,89324640, 640807200,9246847896,67087213336,1957095947664, 14342471475696,211153052281080,1560676296310488, 185256494416099008,1379131680653181504, 20598677144877854232] |