n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 4 |
3 | 6 |
4 | 20 |
5 | 38 |
6 | 104 |
7 | 220 |
8 | 556 |
9 | 1244 |
10 | 3024 |
11 | 6944 |
12 | 16576 |
13 | 38536 |
14 | 91216 |
15 | 213280 |
16 | 502864 |
17 | 1178928 |
18 | 2774592 |
19 | 6512864 |
20 | 15315072 |
21 | 35969952 |
22 | 84550912 |
23 | 198634048 |
24 | 466825152 |
25 | 1096838208 |
26 | 2577550336 |
27 | 6056474880 |
28 | 14232064256 |
29 | 33441977216 |
30 | 78583660288 |
31 | 184655188480 |
[1,1,4,6,20,38,104,220,556,1244,3024,6944,16576, 38536,91216,213280,502864,1178928,2774592,6512864, 15315072,35969952,84550912,198634048,466825152, 1096838208,2577550336,6056474880,14232064256, 33441977216,78583660288,184655188480] |