n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 0 |
4 | 1 |
5 | 0 |
6 | 2 |
7 | 0 |
8 | 4 |
9 | 1 |
10 | 8 |
11 | 12 |
12 | 31 |
13 | 30 |
14 | 50 |
15 | 84 |
16 | 166 |
17 | 240 |
18 | 367 |
19 | 560 |
20 | 970 |
21 | 1647 |
22 | 2736 |
23 | 4340 |
24 | 6924 |
25 | 11185 |
26 | 18334 |
27 | 29875 |
28 | 48272 |
29 | 77632 |
30 | 125262 |
31 | 202838 |
32 | 329098 |
33 | 533758 |
34 | 865248 |
35 | 1402099 |
36 | 2271831 |
37 | 3680202 |
38 | 5960113 |
39 | 9650231 |
40 | 15624475 |
41 | 25301422 |
42 | 40983324 |
43 | 66398800 |
[0,0,0,1,0,2,0,4,1,8,12,31,30,50,84,166,240,367, 560,970,1647,2736,4340,6924,11185,18334,29875, 48272,77632,125262,202838,329098,533758,865248, 1402099,2271831,3680202,5960113,9650231,15624475, 25301422,40983324,66398800] |