n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 6 |
3 | 14 |
4 | 32 |
5 | 82 |
6 | 196 |
7 | 464 |
8 | 1142 |
9 | 2746 |
10 | 6576 |
11 | 15976 |
12 | 38484 |
13 | 92544 |
14 | 223790 |
15 | 539402 |
16 | 1299184 |
17 | 3136178 |
18 | 7560760 |
19 | 18222032 |
20 | 43956888 |
21 | 105980632 |
22 | 255487040 |
23 | 616137680 |
24 | 1485562228 |
25 | 3581617536 |
26 | 8636505982 |
27 | 20823634954 |
28 | 50206996848 |
[1,2,6,14,32,82,196,464,1142,2746,6576,15976, 38484,92544,223790,539402,1299184,3136178,7560760, 18222032,43956888,105980632,255487040,616137680, 1485562228,3581617536,8636505982,20823634954, 50206996848] |