n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 0 |
3 | 0 |
4 | 0 |
5 | 0 |
6 | 1 |
7 | 6 |
8 | 21 |
9 | 56 |
10 | 126 |
11 | 252 |
12 | 463 |
13 | 798 |
14 | 1329 |
15 | 2184 |
16 | 3696 |
17 | 6552 |
18 | 12405 |
19 | 24486 |
20 | 49524 |
21 | 99722 |
22 | 197967 |
23 | 383796 |
24 | 727609 |
25 | 1350174 |
26 | 2466534 |
27 | 4457844 |
28 | 8022819 |
29 | 14448168 |
30 | 26142810 |
31 | 47603010 |
32 | 87222576 |
33 | 160522228 |
34 | 295996791 |
35 | 545445468 |
36 | 1002392105 |
37 | 1834644210 |
38 | 3342375099 |
39 | 6061611192 |
40 | 10949981496 |
41 | 19720143366 |
42 | 35440268956 |
[1,0,0,0,0,0,1,6,21,56,126,252,463,798,1329,2184, 3696,6552,12405,24486,49524,99722,197967,383796, 727609,1350174,2466534,4457844,8022819,14448168, 26142810,47603010,87222576,160522228,295996791, 545445468,1002392105,1834644210,3342375099, 6061611192,10949981496,19720143366,35440268956] |