n | a(n) |
---|---|
1 | 6 |
2 | 108 |
3 | 972 |
4 | 6480 |
5 | 36450 |
6 | 183708 |
7 | 857304 |
8 | 3779136 |
9 | 15943230 |
10 | 64953900 |
11 | 257217444 |
12 | 994857552 |
13 | 3772168218 |
14 | 14061928860 |
15 | 51656065200 |
16 | 187339329792 |
17 | 671787127926 |
18 | 2384960530284 |
19 | 8391527791740 |
20 | 29288988968400 |
21 | 101486346775506 |
[6,108,972,6480,36450,183708,857304,3779136, 15943230,64953900,257217444,994857552,3772168218, 14061928860,51656065200,187339329792,671787127926, 2384960530284,8391527791740,29288988968400, 101486346775506] |