n | a(n) |
---|---|
1 | 3 |
2 | 9 |
3 | 30 |
4 | 108 |
5 | 408 |
6 | 1584 |
7 | 6240 |
8 | 24768 |
9 | 98688 |
10 | 393984 |
11 | 1574400 |
12 | 6294528 |
13 | 25171968 |
14 | 100675584 |
15 | 402677760 |
16 | 1610661888 |
17 | 6442549248 |
18 | 25770000384 |
19 | 103079608320 |
20 | 412317646848 |
21 | 1649269014528 |
22 | 6597072912384 |
23 | 26388285358080 |
24 | 105553128849408 |
[3,9,30,108,408,1584,6240,24768,98688,393984, 1574400,6294528,25171968,100675584,402677760, 1610661888,6442549248,25770000384,103079608320, 412317646848,1649269014528,6597072912384, 26388285358080,105553128849408] |