n | a(n) |
---|---|
1 | 4 |
2 | 12 |
3 | 48 |
4 | 188 |
5 | 740 |
6 | 2936 |
7 | 11672 |
8 | 46388 |
9 | 184352 |
10 | 732608 |
11 | 2911040 |
12 | 11565964 |
13 | 45949600 |
14 | 182538264 |
15 | 725108640 |
16 | 2880270032 |
17 | 11440564516 |
18 | 45441048384 |
19 | 180483666608 |
20 | 716832688844 |
21 | 2847012624636 |
22 | 11307166941460 |
[4,12,48,188,740,2936,11672,46388,184352,732608, 2911040,11565964,45949600,182538264,725108640, 2880270032,11440564516,45441048384,180483666608, 716832688844,2847012624636,11307166941460] |