n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 2 |
4 | 4 |
5 | 9 |
6 | 18 |
7 | 41 |
8 | 89 |
9 | 207 |
10 | 467 |
11 | 1101 |
12 | 2552 |
13 | 6092 |
14 | 14377 |
15 | 34678 |
16 | 82959 |
17 | 201800 |
18 | 487904 |
19 | 1195213 |
20 | 2914427 |
21 | 7181988 |
22 | 17635162 |
23 | 43679583 |
24 | 107879951 |
25 | 268378064 |
26 | 666121087 |
[1,1,2,4,9,18,41,89,207,467,1101,2552,6092,14377, 34678,82959,201800,487904,1195213,2914427,7181988, 17635162,43679583,107879951,268378064,666121087] |