n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 0 |
3 | 3 |
4 | 0 |
5 | 10 |
6 | 0 |
7 | 35 |
8 | 0 |
9 | 126 |
10 | 0 |
11 | 462 |
12 | 0 |
13 | 1716 |
14 | 0 |
15 | 6435 |
16 | 0 |
17 | 24310 |
18 | 0 |
19 | 92378 |
20 | 0 |
21 | 352716 |
22 | 0 |
23 | 1352078 |
24 | 0 |
25 | 5200300 |
26 | 0 |
27 | 20058300 |
28 | 0 |
29 | 77558760 |
30 | 0 |
31 | 300540195 |
32 | 0 |
33 | 1166803110 |
34 | 0 |
35 | 4537567650 |
36 | 0 |
37 | 17672631900 |
38 | 0 |
39 | 68923264410 |
40 | 0 |
41 | 269128937220 |
42 | 0 |
[0,1,0,3,0,10,0,35,0,126,0,462,0,1716,0,6435,0, 24310,0,92378,0,352716,0,1352078,0,5200300,0, 20058300,0,77558760,0,300540195,0,1166803110,0, 4537567650,0,17672631900,0,68923264410,0, 269128937220,0] |