n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 0 |
4 | 1 |
5 | 0 |
6 | 0 |
7 | 1 |
8 | 1 |
9 | 0 |
10 | 2 |
11 | 3 |
12 | 0 |
13 | 3 |
14 | 5 |
15 | 0 |
16 | 7 |
17 | 11 |
18 | 0 |
19 | 12 |
20 | 23 |
21 | 0 |
22 | 30 |
23 | 55 |
24 | 0 |
25 | 55 |
26 | 114 |
27 | 0 |
28 | 143 |
29 | 272 |
30 | 0 |
31 | 273 |
32 | 588 |
33 | 0 |
34 | 728 |
35 | 1428 |
36 | 0 |
37 | 1428 |
38 | 3156 |
39 | 0 |
40 | 3876 |
41 | 7750 |
42 | 0 |
43 | 7752 |
44 | 17427 |
45 | 0 |
46 | 21318 |
47 | 43263 |
48 | 0 |
49 | 43263 |
50 | 98516 |
51 | 0 |
52 | 120175 |
53 | 246672 |
54 | 0 |
55 | 246675 |
56 | 567281 |
57 | 0 |
[0,0,0,1,0,0,1,1,0,2,3,0,3,5,0,7,11,0,12,23,0,30, 55,0,55,114,0,143,272,0,273,588,0,728,1428,0,1428, 3156,0,3876,7750,0,7752,17427,0,21318,43263,0, 43263,98516,0,120175,246672,0,246675,567281,0] |