n | a(n) |
---|---|
0 | 1 |
1 | 12 |
2 | 108 |
3 | 848 |
4 | 6192 |
5 | 43200 |
6 | 292224 |
7 | 1933056 |
8 | 12572928 |
9 | 80702464 |
10 | 512532480 |
11 | 3226742784 |
12 | 20166803456 |
13 | 125262102528 |
14 | 773910872064 |
15 | 4759428268032 |
16 | 29151365234688 |
17 | 177913041518592 |
18 | 1082361265782784 |
19 | 6565932190138368 |
[1,12,108,848,6192,43200,292224,1933056,12572928, 80702464,512532480,3226742784,20166803456, 125262102528,773910872064,4759428268032, 29151365234688,177913041518592,1082361265782784, 6565932190138368] |