n | a(n) |
---|---|
1 | 4 |
2 | 48 |
3 | 224 |
4 | 1088 |
5 | 5248 |
6 | 25344 |
7 | 122368 |
8 | 590848 |
9 | 2852864 |
10 | 13774848 |
11 | 66510848 |
12 | 321142784 |
13 | 1550614528 |
14 | 7487029248 |
15 | 36150575104 |
16 | 174550417408 |
17 | 842803970048 |
18 | 4069417549824 |
19 | 19648886079488 |
20 | 94873214517248 |
21 | 458088402386944 |
[4,48,224,1088,5248,25344,122368,590848,2852864, 13774848,66510848,321142784,1550614528,7487029248, 36150575104,174550417408,842803970048, 4069417549824,19648886079488,94873214517248, 458088402386944] |