n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 0 |
4 | 2 |
5 | 2 |
6 | 4 |
7 | 6 |
8 | 12 |
9 | 20 |
10 | 39 |
11 | 71 |
12 | 137 |
13 | 261 |
14 | 511 |
15 | 995 |
16 | 1974 |
17 | 3915 |
18 | 7841 |
19 | 15749 |
20 | 31835 |
21 | 64540 |
22 | 131453 |
23 | 268498 |
24 | 550324 |
25 | 1130899 |
26 | 2330381 |
27 | 4813031 |
28 | 9963288 |
29 | 20665781 |
30 | 42947715 |
31 | 89410092 |
32 | 186447559 |
33 | 389397778 |
34 | 814447067 |
35 | 1705775653 |
36 | 3577169927 |
[1,1,1,0,2,2,4,6,12,20,39,71,137,261,511,995,1974, 3915,7841,15749,31835,64540,131453,268498,550324, 1130899,2330381,4813031,9963288,20665781,42947715, 89410092,186447559,389397778,814447067,1705775653, 3577169927] |