n | a(n) |
---|---|
1 | 6 |
2 | 36 |
3 | 102 |
4 | 288 |
5 | 896 |
6 | 2499 |
7 | 6634 |
8 | 17848 |
9 | 47192 |
10 | 122200 |
11 | 315315 |
12 | 809784 |
13 | 2063670 |
14 | 5238225 |
15 | 13261490 |
16 | 33465000 |
17 | 84237826 |
18 | 211676500 |
19 | 531027000 |
20 | 1330245423 |
21 | 3328592562 |
22 | 8320844952 |
23 | 20782671568 |
24 | 51871277456 |
25 | 129387019195 |
26 | 322571437760 |
[6,36,102,288,896,2499,6634,17848,47192,122200, 315315,809784,2063670,5238225,13261490,33465000, 84237826,211676500,531027000,1330245423, 3328592562,8320844952,20782671568,51871277456, 129387019195,322571437760] |