n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 1 |
4 | 1 |
5 | 2 |
6 | 2 |
7 | 4 |
8 | 6 |
9 | 13 |
10 | 24 |
11 | 48 |
12 | 85 |
13 | 160 |
14 | 288 |
15 | 541 |
16 | 1008 |
17 | 1920 |
18 | 3626 |
19 | 6912 |
20 | 13107 |
21 | 24989 |
22 | 47616 |
23 | 91136 |
24 | 174590 |
25 | 335462 |
26 | 645120 |
27 | 1242904 |
28 | 2396745 |
29 | 4628480 |
30 | 8947294 |
31 | 17317888 |
32 | 33552384 |
33 | 65074253 |
34 | 126320640 |
35 | 245428574 |
36 | 477218560 |
37 | 928645120 |
38 | 1808400384 |
39 | 3524068955 |
[0,0,1,1,2,2,4,6,13,24,48,85,160,288,541,1008, 1920,3626,6912,13107,24989,47616,91136,174590, 335462,645120,1242904,2396745,4628480,8947294, 17317888,33552384,65074253,126320640,245428574, 477218560,928645120,1808400384,3524068955] |