n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 0 |
3 | 0 |
4 | 0 |
5 | 0 |
6 | 0 |
7 | 0 |
8 | 0 |
9 | 0 |
10 | 0 |
11 | 2 |
12 | 5 |
13 | 12 |
14 | 27 |
15 | 56 |
16 | 110 |
17 | 212 |
18 | 397 |
19 | 734 |
20 | 1339 |
21 | 2414 |
22 | 4316 |
23 | 7659 |
24 | 13507 |
25 | 23691 |
26 | 41362 |
27 | 71920 |
28 | 124603 |
29 | 215188 |
30 | 370565 |
31 | 636491 |
32 | 1090709 |
33 | 1865121 |
34 | 3183224 |
35 | 5423255 |
36 | 9224601 |
37 | 15666968 |
38 | 26571801 |
39 | 45009002 |
40 | 76148146 |
41 | 128687426 |
[1,0,0,0,0,0,0,0,0,0,0,2,5,12,27,56,110,212,397, 734,1339,2414,4316,7659,13507,23691,41362,71920, 124603,215188,370565,636491,1090709,1865121, 3183224,5423255,9224601,15666968,26571801, 45009002,76148146,128687426] |