n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 4 |
3 | 8 |
4 | 18 |
5 | 44 |
6 | 112 |
7 | 288 |
8 | 744 |
9 | 1938 |
10 | 5104 |
11 | 13584 |
12 | 36456 |
13 | 98468 |
14 | 267376 |
15 | 729488 |
16 | 1999074 |
17 | 5500412 |
18 | 15189636 |
19 | 42084952 |
20 | 116949848 |
21 | 325878288 |
22 | 910333152 |
23 | 2548892864 |
24 | 7152113760 |
25 | 20108587038 |
26 | 56641227416 |
27 | 159820928328 |
[1,2,4,8,18,44,112,288,744,1938,5104,13584,36456, 98468,267376,729488,1999074,5500412,15189636, 42084952,116949848,325878288,910333152,2548892864, 7152113760,20108587038,56641227416,159820928328] |