n | a(n) |
---|---|
0 | 1 |
1 | 7 |
2 | 40 |
3 | 208 |
4 | 1024 |
5 | 4864 |
6 | 22528 |
7 | 102400 |
8 | 458752 |
9 | 2031616 |
10 | 8912896 |
11 | 38797312 |
12 | 167772160 |
13 | 721420288 |
14 | 3087007744 |
15 | 13153337344 |
16 | 55834574848 |
17 | 236223201280 |
18 | 996432412672 |
19 | 4191888080896 |
20 | 17592186044416 |
21 | 73667279060992 |
[1,7,40,208,1024,4864,22528,102400,458752,2031616, 8912896,38797312,167772160,721420288,3087007744, 13153337344,55834574848,236223201280,996432412672, 4191888080896,17592186044416,73667279060992] |