n | a(n) |
---|---|
1 | 3 |
2 | 6 |
3 | 18 |
4 | 54 |
5 | 162 |
6 | 486 |
7 | 972 |
8 | 1944 |
9 | 5832 |
10 | 40824 |
11 | 204120 |
12 | 408240 |
13 | 816480 |
14 | 1632960 |
15 | 3265920 |
16 | 6531840 |
17 | 26127360 |
18 | 130636800 |
19 | 391910400 |
20 | 1175731200 |
21 | 14108774400 |
22 | 56435097600 |
23 | 1241572147200 |
24 | 8691005030400 |
25 | 26073015091200 |
26 | 260730150912000 |
[3,6,18,54,162,486,972,1944,5832,40824,204120, 408240,816480,1632960,3265920,6531840,26127360, 130636800,391910400,1175731200,14108774400, 56435097600,1241572147200,8691005030400, 26073015091200,260730150912000] |